204516536780 has 24 divisors (see below), whose sum is σ = 434659245552. Its totient is φ = 80820992192.

The previous prime is 204516536743. The next prime is 204516536803. The reversal of 204516536780 is 87635615402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61599707 + ... + 61603026.

It is an arithmetic number, because the mean of its divisors is an integer number (18110801898).

Almost surely, 2^204516536780 is an apocalyptic number.

204516536780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204516536780 is an abundant number, since it is smaller than the sum of its proper divisors (230142708772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204516536780 is a wasteful number, since it uses less digits than its factorization.

204516536780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123202825 (or 123202823 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 204516536780 in words is "two hundred four billion, five hundred sixteen million, five hundred thirty-six thousand, seven hundred eighty".