204616664 has 32 divisors (see below), whose sum is σ = 444479520. Its totient is φ = 86489856.

The previous prime is 204616649. The next prime is 204616673. The reversal of 204616664 is 466616402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20939 + ... + 29114.

It is an arithmetic number, because the mean of its divisors is an integer number (13889985).

Almost surely, 2^204616664 is an apocalyptic number.

It is an amenable number.

204616664 is an abundant number, since it is smaller than the sum of its proper divisors (239862856).

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

204616664 is a wasteful number, since it uses less digits than its factorization.

204616664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50139 (or 50135 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 204616664 is about 14304.4281255840. The cubic root of 204616664 is about 589.2690977923.

The spelling of 204616664 in words is "two hundred four million, six hundred sixteen thousand, six hundred sixty-four".