131356437978162 has 32 divisors (see below), whose sum is σ = 262792469122560. Its totient is φ = 43772214447360.

The previous prime is 131356437978131. The next prime is 131356437978203. The reversal of 131356437978162 is 261879734653131.

It is a junction number, because it is equal to n+sod(n) for n = 131356437978093 and 131356437978102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389100639 + ... + 1389195197.

It is an arithmetic number, because the mean of its divisors is an integer number (8212264660080).

Almost surely, 2^{131356437978162} is an apocalyptic number.

131356437978162 is an abundant number, since it is smaller than the sum of its proper divisors (131436031144398).

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

131356437978162 is a wasteful number, since it uses less digits than its factorization.

131356437978162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162258.

The product of its digits is 137168640, while the sum is 66.

The spelling of 131356437978162 in words is "one hundred thirty-one trillion, three hundred fifty-six billion, four hundred thirty-seven million, nine hundred seventy-eight thousand, one hundred sixty-two".