At first this is an analysis just out of curiosity, maybe it doesn't mean anything...
The marketcap of a cryptocurrency is obtained by multiplying the price by its number of units in circulation.
Then:
BTCUSD = U$ 19 K
BTC_SUPPLY = 19,176 M units
BTC MarketCap = BTCUSD x BTC_SUPPLY = $365.3 B
What would happen if the market value were evenly distributed...