131816797671 has 16 divisors (see below), whose sum is σ = 191011879520. Its totient is φ = 80373824640.

The previous prime is 131816797663. The next prime is 131816797729. The reversal of 131816797671 is 176797618131.

It is not a de Polignac number, because 131816797671 - 2³ = 131816797663 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 (131816797631) 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, 15499960 + ... + 15508461.

It is an arithmetic number, because the mean of its divisors is an integer number (11938242470).

Almost surely, 2^131816797671 is an apocalyptic number.

131816797671 is a deficient number, since it is larger than the sum of its proper divisors (59195081849).

131816797671 is a wasteful number, since it uses less digits than its factorization.

131816797671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31008546.

The product of its digits is 2667168, while the sum is 57.

The spelling of 131816797671 in words is "one hundred thirty-one billion, eight hundred sixteen million, seven hundred ninety-seven thousand, six hundred seventy-one".