204621164328 has 32 divisors (see below), whose sum is σ = 584631898560. Its totient is φ = 58463189760.

The previous prime is 204621164291. The next prime is 204621164369. The reversal of 204621164328 is 823461126402.

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, 608991393 + ... + 608991728.

It is an arithmetic number, because the mean of its divisors is an integer number (18269746830).

Almost surely, 2^204621164328 is an apocalyptic number.

204621164328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204621164328 is an abundant number, since it is smaller than the sum of its proper divisors (380010734232).

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

204621164328 is a wasteful number, since it uses less digits than its factorization.

204621164328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217983137 (or 1217983133 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 204621164328 in words is "two hundred four billion, six hundred twenty-one million, one hundred sixty-four thousand, three hundred twenty-eight".