204561151455012 has 48 divisors (see below), whose sum is σ = 524447164012800. Its totient is φ = 61542269235360.

The previous prime is 204561151454987. The next prime is 204561151455019. The reversal of 204561151455012 is 210554151165402.

It is not an unprimeable number, because it can be changed into a prime (204561151455019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5574462562 + ... + 5574499257.

It is an arithmetic number, because the mean of its divisors is an integer number (10925982583600).

Almost surely, 2^{204561151455012} is an apocalyptic number.

204561151455012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

204561151455012 is an abundant number, since it is smaller than the sum of its proper divisors (319886012557788).

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

204561151455012 is a wasteful number, since it uses less digits than its factorization.

204561151455012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148961976 (or 11148961974 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 204561151455012 in words is "two hundred four trillion, five hundred sixty-one billion, one hundred fifty-one million, four hundred fifty-five thousand, twelve".