91295465658 has 16 divisors (see below), whose sum is σ = 185584226016. Its totient is φ = 29932939440.

The previous prime is 91295465647. The next prime is 91295465663. The reversal of 91295465658 is 85656459219.

It is a super-2 number, since 2×91295465658² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124720216 + ... + 124720947.

It is an arithmetic number, because the mean of its divisors is an integer number (11599014126).

Almost surely, 2^91295465658 is an apocalyptic number.

91295465658 is an abundant number, since it is smaller than the sum of its proper divisors (94288760358).

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

91295465658 is a wasteful number, since it uses less digits than its factorization.

91295465658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249441229.

The product of its digits is 23328000, while the sum is 60.

The spelling of 91295465658 in words is "ninety-one billion, two hundred ninety-five million, four hundred sixty-five thousand, six hundred fifty-eight".