155636664 has 16 divisors (see below), whose sum is σ = 389091720. Its totient is φ = 51878880.

The previous prime is 155636659. The next prime is 155636687. The reversal of 155636664 is 466636551.

155636664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 3242407 + ... + 3242454.

Almost surely, 2^155636664 is an apocalyptic number.

It is an amenable number.

155636664 is an abundant number, since it is smaller than the sum of its proper divisors (233455056).

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

155636664 is a wasteful number, since it uses less digits than its factorization.

155636664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484870 (or 6484866 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 155636664 is about 12475.4424370441. The cubic root of 155636664 is about 537.9030057819.

The spelling of 155636664 in words is "one hundred fifty-five million, six hundred thirty-six thousand, six hundred sixty-four".