204446664664 has 32 divisors (see below), whose sum is σ = 442785560400. Its totient is φ = 87463813120.

The previous prime is 204446664659. The next prime is 204446664673. The reversal of 204446664664 is 466466644402.

204446664664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 68329609 + ... + 68332600.

Almost surely, 2^204446664664 is an apocalyptic number.

It is an amenable number.

204446664664 is an abundant number, since it is smaller than the sum of its proper divisors (238338895736).

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

204446664664 is a wasteful number, since it uses less digits than its factorization.

204446664664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136662243 (or 136662239 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 52.

The spelling of 204446664664 in words is "two hundred four billion, four hundred forty-six million, six hundred sixty-four thousand, six hundred sixty-four".