157568864 has 12 divisors (see below), whose sum is σ = 310213764. Its totient is φ = 78784416.

The previous prime is 157568857. The next prime is 157568911. The reversal of 157568864 is 468865751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2461982 + ... + 2462045.

It is an arithmetic number, because the mean of its divisors is an integer number (25851147).

Almost surely, 2^157568864 is an apocalyptic number.

It is an amenable number.

157568864 is a deficient number, since it is larger than the sum of its proper divisors (152644900).

157568864 is an equidigital number, since it uses as much as digits as its factorization.

157568864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924037 (or 4924029 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The square root of 157568864 is about 12552.6437056104. The cubic root of 157568864 is about 540.1198453708.

The spelling of 157568864 in words is "one hundred fifty-seven million, five hundred sixty-eight thousand, eight hundred sixty-four".