157657964 has 6 divisors (see below), whose sum is σ = 275901444. Its totient is φ = 78828980.

The previous prime is 157657957. The next prime is 157657993. The reversal of 157657964 is 469756751.

It is a super-2 number, since 2×157657964² = 49712067225250592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19707242 + ... + 19707249.

It is an arithmetic number, because the mean of its divisors is an integer number (45983574).

Almost surely, 2^157657964 is an apocalyptic number.

It is an amenable number.

157657964 is a deficient number, since it is larger than the sum of its proper divisors (118243480).

157657964 is a wasteful number, since it uses less digits than its factorization.

157657964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39414495 (or 39414493 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The square root of 157657964 is about 12556.1922572092. The cubic root of 157657964 is about 540.2216328451.

The spelling of 157657964 in words is "one hundred fifty-seven million, six hundred fifty-seven thousand, nine hundred sixty-four".