157657256732 has 12 divisors (see below), whose sum is σ = 275905818216. Its totient is φ = 78827022960.

The previous prime is 157657256719. The next prime is 157657256737. The reversal of 157657256732 is 237652756751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157657256737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164918 + ... + 585245.

It is an arithmetic number, because the mean of its divisors is an integer number (22992151518).

Almost surely, 2^157657256732 is an apocalyptic number.

It is an amenable number.

157657256732 is a deficient number, since it is larger than the sum of its proper divisors (118248561484).

157657256732 is a wasteful number, since it uses less digits than its factorization.

157657256732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802708 (or 802706 counting only the distinct ones).

The product of its digits is 18522000, while the sum is 56.

The spelling of 157657256732 in words is "one hundred fifty-seven billion, six hundred fifty-seven million, two hundred fifty-six thousand, seven hundred thirty-two".