LAS VEGAS — His middle name is Money, or it was before Floyd Mayweather Jr. stopped flashing $100,000 wads of cash whenever he saw a camera.

That doesn’t mean money is ever far from his mind. Certainly not now, when he’s the richest man in the richest fight ever.

Mayweather spent as much time this week talking about the mansion in Las Vegas, the home in Miami and the private jet that seats 14 than he has about Manny Pacquiao. He even figured out the math when it comes to dividing it among his kids.

“Let’s say I make $200 million,” Mayweather said. “That means my kids for this fight will get $50 million apiece. I think I made a smart move.”

Indeed, Mayweather proved a smart businessman in signing for a fight that likely will earn him $180 million or more. But the smartest thing he may have done was delay the fight five years so it would be must-see TV, even at a record $99.95 price.

“Five years ago this was a $50 million fight for me,” Mayweather said, “and a $20 million fight for him.”

The frenzy for boxing’s biggest event of the century continued to build Wednesday, even if the fighters were subdued. They appeared at a final prefight press conference with nothing bad to say about each other, and couldn’t even bring themselves to scowl for pictures.

If the past five years were personal, with the camps trading barbs, the fight is not. Pacquiao will fight for his legacy and a country desperate for him to win, and Mayweather will fight to add to his bank accounts.

That was evident when Mayweather was asked if being unbeaten was his top motivation.

“At the end of the day my daughter can’t eat no zero,” Mayweather said of his unbeaten mark. “She can’t spend a boxing ring.”

Money shouldn’t be a problem for the Mayweather family after this fight. Not with total revenue of some $300 million, and possibly more if the pay-per-view is the hit that network executives privately think it will be.

Mayweather won’t be the only one getting rich. Pacquiao also will share in the $120 million or so his side will pocket, beginning with a $25 million check from promoter Bob Arum the night of the fight.

“I don’t like to write checks of an amount I don’t have in the bank,” Arum said. “I can cover 25 so that’s the amount he will get fight night.”

Pacquiao said he couldn’t even conceive of the kind of money he makes now to fight.

“I used to sleep in the street starving and hungry,” the Filipino congressman said. “I can’t imagine the boy who slept in the streets was raised to this level where I am today.”

Both fighters finished their major preparation earlier in the week, with both facing challenges unlike they have seen before.

In Mayweather’s case it’s a left-hander who fights in spurts and comes from different angles, a style he will have to figure out early. For Pacquiao it’s a defensive wizard who has fought 47 fighters and beaten them all.

“I think we can outpoint this guy,” Pacquiao’s trainer Freddie Roach said. “If a knockout comes it will be a bonus.”

Mayweather has been quiet about strategy but said his father crafted a game plan.

“I’m sure it’s going to be an exciting fight,” Mayweather said.