131372165647 has 16 divisors (see below), whose sum is σ = 137665863360. Its totient is φ = 125127459072.

The previous prime is 131372165623. The next prime is 131372165653. The reversal of 131372165647 is 746561273131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131372165647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131372165597 and 131372165606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131372165677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15073363 + ... + 15082075.

It is an arithmetic number, because the mean of its divisors is an integer number (8604116460).

Almost surely, 2^131372165647 is an apocalyptic number.

131372165647 is a deficient number, since it is larger than the sum of its proper divisors (6293697713).

131372165647 is a wasteful number, since it uses less digits than its factorization.

131372165647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442.

The product of its digits is 635040, while the sum is 46.

The spelling of 131372165647 in words is "one hundred thirty-one billion, three hundred seventy-two million, one hundred sixty-five thousand, six hundred forty-seven".