204563155115604 has 24 divisors (see below), whose sum is σ = 477855815266368. Its totient is φ = 68110320277120.

The previous prime is 204563155115533. The next prime is 204563155115663. The reversal of 204563155115604 is 406511551365402.

It is a congruent number.

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, 9674750832 + ... + 9674771975.

It is an arithmetic number, because the mean of its divisors is an integer number (19910658969432).

Almost surely, 2^{204563155115604} is an apocalyptic number.

It is an amenable number.

204563155115604 is an abundant number, since it is smaller than the sum of its proper divisors (273292660150764).

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

204563155115604 is a wasteful number, since it uses less digits than its factorization.

204563155115604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19349523695 (or 19349523693 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 204563155115604 in words is "two hundred four trillion, five hundred sixty-three billion, one hundred fifty-five million, one hundred fifteen thousand, six hundred four".