157956070728 has 16 divisors (see below), whose sum is σ = 394890176880. Its totient is φ = 52652023568.

The previous prime is 157956070661. The next prime is 157956070739. The reversal of 157956070728 is 827070659751.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290751450 + ... + 3290751497.

It is an arithmetic number, because the mean of its divisors is an integer number (24680636055).

Almost surely, 2^157956070728 is an apocalyptic number.

It is an amenable number.

157956070728 is an abundant number, since it is smaller than the sum of its proper divisors (236934106152).

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

157956070728 is a wasteful number, since it uses less digits than its factorization.

157956070728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581502956 (or 6581502952 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 157956070728 in words is "one hundred fifty-seven billion, nine hundred fifty-six million, seventy thousand, seven hundred twenty-eight".