91162418408 has 16 divisors (see below), whose sum is σ = 170966466180. Its totient is φ = 45571360768.

The previous prime is 91162418329. The next prime is 91162418411. The reversal of 91162418408 is 80481426119.

It can be written as a sum of positive squares in 2 ways, for example, as 83323440964 + 7838977444 = 288658^2 + 88538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191641 + ... + 1265832.

Almost surely, 2^91162418408 is an apocalyptic number.

It is an amenable number.

91162418408 is a deficient number, since it is larger than the sum of its proper divisors (79804047772).

91162418408 is a wasteful number, since it uses less digits than its factorization.

91162418408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462116 (or 2462112 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 91162418408 in words is "ninety-one billion, one hundred sixty-two million, four hundred eighteen thousand, four hundred eight".