151831515156 has 24 divisors (see below), whose sum is σ = 354282583200. Its totient is φ = 50609212512.

The previous prime is 151831515113. The next prime is 151831515259. The reversal of 151831515156 is 651515138151.

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, 408270 + ... + 685818.

It is an arithmetic number, because the mean of its divisors is an integer number (14761774300).

Almost surely, 2^151831515156 is an apocalyptic number.

It is an amenable number.

151831515156 is an abundant number, since it is smaller than the sum of its proper divisors (202451068044).

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

151831515156 is a wasteful number, since it uses less digits than its factorization.

151831515156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323143 (or 323141 counting only the distinct ones).

The product of its digits is 90000, while the sum is 42.

The spelling of 151831515156 in words is "one hundred fifty-one billion, eight hundred thirty-one million, five hundred fifteen thousand, one hundred fifty-six".