More to the point, he has the same 24 hours in a day as everyone else. His money lets him do different things with those 24 hours than you and I, but he still only gets 24. (Until he gets to Mars, then it's 24.66.)
Between Bryan Johnson, and then also Xi and Putin getting caught on a hot mic discussing how they're going to live to 120 or 150, I wouldn't be so sure.