131531736668 has 24 divisors (see below), whose sum is σ = 233120690880. Its totient is φ = 64926014400.

The previous prime is 131531736599. The next prime is 131531736727. The reversal of 131531736668 is 866637135131.

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, 3679730 + ... + 3715302.

It is an arithmetic number, because the mean of its divisors is an integer number (9713362120).

Almost surely, 2^131531736668 is an apocalyptic number.

It is an amenable number.

131531736668 is a deficient number, since it is larger than the sum of its proper divisors (101588954212).

131531736668 is a wasteful number, since it uses less digits than its factorization.

131531736668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47357 (or 47355 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The spelling of 131531736668 in words is "one hundred thirty-one billion, five hundred thirty-one million, seven hundred thirty-six thousand, six hundred sixty-eight".