204656664630 has 64 divisors (see below), whose sum is σ = 537657378048. Its totient is φ = 49444383360.

The previous prime is 204656664607. The next prime is 204656664677. The reversal of 204656664630 is 36466656402.

It is a self number, because there is not a number n which added to its sum of digits gives 204656664630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961624 + ... + 1155003.

It is an arithmetic number, because the mean of its divisors is an integer number (8400896532).

Almost surely, 2^204656664630 is an apocalyptic number.

204656664630 is an abundant number, since it is smaller than the sum of its proper divisors (333000713418).

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

204656664630 is a wasteful number, since it uses less digits than its factorization.

204656664630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116941.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 204656664630 in words is "two hundred four billion, six hundred fifty-six million, six hundred sixty-four thousand, six hundred thirty".