91660906713935 has 64 divisors (see below), whose sum is σ = 125047124407296. Its totient is φ = 64035488563200.

The previous prime is 91660906713679. The next prime is 91660906714001. The reversal of 91660906713935 is 53931760906619.

It is not a de Polignac number, because 91660906713935 - 2⁸ = 91660906713679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13864475 + ... + 19378995.

It is an arithmetic number, because the mean of its divisors is an integer number (1953861318864).

Almost surely, 2^{91660906713935} is an apocalyptic number.

91660906713935 is a deficient number, since it is larger than the sum of its proper divisors (33386217693361).

91660906713935 is a wasteful number, since it uses less digits than its factorization.

91660906713935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514756.

The product of its (nonzero) digits is 49601160, while the sum is 65.

The spelling of 91660906713935 in words is "ninety-one trillion, six hundred sixty billion, nine hundred six million, seven hundred thirteen thousand, nine hundred thirty-five".