264404242022664 has 32 divisors (see below), whose sum is σ = 661042081513440. Its totient is φ = 88130550480000.

The previous prime is 264404242022651. The next prime is 264404242022681. The reversal of 264404242022664 is 466220242404462.

It is a happy 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, 261789282 + ... + 262797329.

It is an arithmetic number, because the mean of its divisors is an integer number (20657565047295).

Almost surely, 2^{264404242022664} is an apocalyptic number.

264404242022664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

264404242022664 is an abundant number, since it is smaller than the sum of its proper divisors (396637839490776).

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

264404242022664 is a wasteful number, since it uses less digits than its factorization.

264404242022664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524607621 (or 524607617 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 48.

The spelling of 264404242022664 in words is "two hundred sixty-four trillion, four hundred four billion, two hundred forty-two million, twenty-two thousand, six hundred sixty-four".