131611976560 has 20 divisors (see below), whose sum is σ = 305997845688. Its totient is φ = 52644790592.

The previous prime is 131611976537. The next prime is 131611976591. The reversal of 131611976560 is 65679116131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 131611976560.

It is a congruent 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, 822574774 + ... + 822574933.

Almost surely, 2^131611976560 is an apocalyptic number.

131611976560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131611976560 is an abundant number, since it is smaller than the sum of its proper divisors (174385869128).

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

131611976560 is a wasteful number, since it uses less digits than its factorization.

131611976560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645149720 (or 1645149714 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 131611976560 in words is "one hundred thirty-one billion, six hundred eleven million, nine hundred seventy-six thousand, five hundred sixty".