157696636 has 6 divisors (see below), whose sum is σ = 275969120. Its totient is φ = 78848316.

The previous prime is 157696613. The next prime is 157696639. The reversal of 157696636 is 636696751.

It is a self number, because there is not a number n which added to its sum of digits gives 157696636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157696639) by changing a digit.

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, 19712076 + ... + 19712083.

Almost surely, 2^157696636 is an apocalyptic number.

It is an amenable number.

157696636 is a deficient number, since it is larger than the sum of its proper divisors (118272484).

157696636 is a wasteful number, since it uses less digits than its factorization.

157696636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39424163 (or 39424161 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 49.

The square root of 157696636 is about 12557.7321200924. The cubic root of 157696636 is about 540.2657996446.

The spelling of 157696636 in words is "one hundred fifty-seven million, six hundred ninety-six thousand, six hundred thirty-six".