264275664 has 20 divisors (see below), whose sum is σ = 682712256. Its totient is φ = 88091872.

The previous prime is 264275653. The next prime is 264275707. The reversal of 264275664 is 466572462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752824 + ... + 2752919.

Almost surely, 2^264275664 is an apocalyptic number.

264275664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

264275664 is an abundant number, since it is smaller than the sum of its proper divisors (418436592).

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

264275664 is a wasteful number, since it uses less digits than its factorization.

264275664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505754 (or 5505748 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 264275664 is about 16256.5575691780. The cubic root of 264275664 is about 641.7300715967.

The spelling of 264275664 in words is "two hundred sixty-four million, two hundred seventy-five thousand, six hundred sixty-four".