156858664 has 8 divisors (see below), whose sum is σ = 294110010. Its totient is φ = 78429328.

The previous prime is 156858659. The next prime is 156858671. The reversal of 156858664 is 466858651.

It can be written as a sum of positive squares in only one way, i.e., 148108900 + 8749764 = 12170^2 + 2958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9803659 + ... + 9803674.

Almost surely, 2^156858664 is an apocalyptic number.

It is an amenable number.

156858664 is a deficient number, since it is larger than the sum of its proper divisors (137251346).

156858664 is a wasteful number, since it uses less digits than its factorization.

156858664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19607339 (or 19607335 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 156858664 is about 12524.3228958695. The cubic root of 156858664 is about 539.3071406550.

The spelling of 156858664 in words is "one hundred fifty-six million, eight hundred fifty-eight thousand, six hundred sixty-four".