131567665297 has 4 divisors (see below), whose sum is σ = 138492279280. Its totient is φ = 124643051316.

The previous prime is 131567665289. The next prime is 131567665319. The reversal of 131567665297 is 792566765131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792566765131 = 43427 ⋅18250553.

It is a cyclic number.

It is not a de Polignac number, because 131567665297 - 2³ = 131567665289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131567665237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462306963 + ... + 3462307000.

It is an arithmetic number, because the mean of its divisors is an integer number (34623069820).

Almost surely, 2^131567665297 is an apocalyptic number.

It is an amenable number.

131567665297 is a deficient number, since it is larger than the sum of its proper divisors (6924613983).

131567665297 is an equidigital number, since it uses as much as digits as its factorization.

131567665297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6924613982.

The product of its digits is 14288400, while the sum is 58.

The spelling of 131567665297 in words is "one hundred thirty-one billion, five hundred sixty-seven million, six hundred sixty-five thousand, two hundred ninety-seven".