158257731156 has 24 divisors (see below), whose sum is σ = 422020616640. Its totient is φ = 45216494592.

The previous prime is 158257731127. The next prime is 158257731161. The reversal of 158257731156 is 651137752851.

It is a junction number, because it is equal to n+sod(n) for n = 158257731099 and 158257731108.

It is a congruent number.

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, 942010221 + ... + 942010388.

It is an arithmetic number, because the mean of its divisors is an integer number (17584192360).

Almost surely, 2^158257731156 is an apocalyptic number.

It is an amenable number.

158257731156 is an abundant number, since it is smaller than the sum of its proper divisors (263762885484).

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

158257731156 is a wasteful number, since it uses less digits than its factorization.

158257731156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884020623 (or 1884020621 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 51.

The spelling of 158257731156 in words is "one hundred fifty-eight billion, two hundred fifty-seven million, seven hundred thirty-one thousand, one hundred fifty-six".