157643688 has 32 divisors (see below), whose sum is σ = 403724160. Its totient is φ = 51265920.

The previous prime is 157643671. The next prime is 157643743. The reversal of 157643688 is 886346751.

157643688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79120 + ... + 81087.

It is an arithmetic number, because the mean of its divisors is an integer number (12616380).

Almost surely, 2^157643688 is an apocalyptic number.

It is an amenable number.

157643688 is an abundant number, since it is smaller than the sum of its proper divisors (246080472).

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

157643688 is a wasteful number, since it uses less digits than its factorization.

157643688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160257 (or 160253 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 157643688 is about 12555.6237598934. The cubic root of 157643688 is about 540.2053265818.

The spelling of 157643688 in words is "one hundred fifty-seven million, six hundred forty-three thousand, six hundred eighty-eight".