131561027670 has 16 divisors (see below), whose sum is σ = 315746466480. Its totient is φ = 35082940704.

The previous prime is 131561027657. The next prime is 131561027701. The reversal of 131561027670 is 76720165131.

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, 2192683765 + ... + 2192683824.

It is an arithmetic number, because the mean of its divisors is an integer number (19734154155).

Almost surely, 2^131561027670 is an apocalyptic number.

131561027670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131561027670 is an abundant number, since it is smaller than the sum of its proper divisors (184185438810).

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

131561027670 is a wasteful number, since it uses less digits than its factorization.

131561027670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385367599.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 131561027670 in words is "one hundred thirty-one billion, five hundred sixty-one million, twenty-seven thousand, six hundred seventy".