131507660477 has 8 divisors (see below), whose sum is σ = 136421366400. Its totient is φ = 126619218544.

The previous prime is 131507660437. The next prime is 131507660519. The reversal of 131507660477 is 774066705131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131507660477 - 2⁶ = 131507660413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131507660407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6305393 + ... + 6326214.

It is an arithmetic number, because the mean of its divisors is an integer number (17052670800).

Almost surely, 2^131507660477 is an apocalyptic number.

It is an amenable number.

131507660477 is a deficient number, since it is larger than the sum of its proper divisors (4913705923).

131507660477 is a wasteful number, since it uses less digits than its factorization.

131507660477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631995.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 131507660477 in words is "one hundred thirty-one billion, five hundred seven million, six hundred sixty thousand, four hundred seventy-seven".