91957807116 has 96 divisors (see below), whose sum is σ = 272518400000. Its totient is φ = 26268758784.

The previous prime is 91957807091. The next prime is 91957807133. The reversal of 91957807116 is 61170875919.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6561885 + ... + 6575883.

Almost surely, 2^91957807116 is an apocalyptic number.

It is an amenable number.

91957807116 is an abundant number, since it is smaller than the sum of its proper divisors (180560592884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91957807116 is a wasteful number, since it uses less digits than its factorization.

91957807116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22708 (or 22700 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 54.

The spelling of 91957807116 in words is "ninety-one billion, nine hundred fifty-seven million, eight hundred seven thousand, one hundred sixteen".