655375864 has 32 divisors (see below), whose sum is σ = 1443662640. Its totient is φ = 274982400.

The previous prime is 655375859. The next prime is 655375871. The reversal of 655375864 is 468573556.

655375864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×655375864² = 859035046227492992, which contains 22 as substring.

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, 285297 + ... + 287584.

Almost surely, 2^655375864 is an apocalyptic number.

It is an amenable number.

655375864 is an abundant number, since it is smaller than the sum of its proper divisors (788286776).

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

655375864 is a wasteful number, since it uses less digits than its factorization.

655375864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572911 (or 572907 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The square root of 655375864 is about 25600.3098418750. The cubic root of 655375864 is about 868.6206459649.

The spelling of 655375864 in words is "six hundred fifty-five million, three hundred seventy-five thousand, eight hundred sixty-four".