If American about 15 million, would be lower 7.5 if 15 years ago.
Japan wealth is getting hard your taxed on inheritance for each generation, so the more money you have the less your offsprings get.
Philippines, Thailand and Vietnam, you need about 200,000 for the rest of your life to live rich,
Germany you would need 22 million USD as the cost of living is high there,
Australia 11 million,
All this is just speculation as so many factors could effect this, how you earned it was it taxed if so you would get less, did you win lotto.
For me personally 50,000 is enough.