157920733432 has 32 divisors (see below), whose sum is σ = 369165352320. Its totient is φ = 61527558240.

The previous prime is 157920733367. The next prime is 157920733433. The reversal of 157920733432 is 234337029751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157920733433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128181798 + ... + 128183029.

It is an arithmetic number, because the mean of its divisors is an integer number (11536417260).

Almost surely, 2^157920733432 is an apocalyptic number.

It is an amenable number.

157920733432 is an abundant number, since it is smaller than the sum of its proper divisors (211244618888).

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

157920733432 is a wasteful number, since it uses less digits than its factorization.

157920733432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256364851 (or 256364847 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 46.

The spelling of 157920733432 in words is "one hundred fifty-seven billion, nine hundred twenty million, seven hundred thirty-three thousand, four hundred thirty-two".