204690332160 has 120 divisors (see below), whose sum is σ = 708900269220. Its totient is φ = 54584082432.

The previous prime is 204690332071. The next prime is 204690332179. The reversal of 204690332160 is 61233096402.

204690332160 is a `hidden beast` number, since 2 + 0 + 469 + 0 + 3 + 32 + 160 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 191759913216 + 12930418944 = 437904^2 + 113712^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×204690332160² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4419025 + ... + 4465104.

Almost surely, 2^204690332160 is an apocalyptic number.

204690332160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204690332160 is an abundant number, since it is smaller than the sum of its proper divisors (504209937060).

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

204690332160 is an equidigital number, since it uses as much as digits as its factorization.

204690332160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884158 (or 8884139 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 204690332160 in words is "two hundred four billion, six hundred ninety million, three hundred thirty-two thousand, one hundred sixty".