91659353091922 has 128 divisors (see below), whose sum is σ = 182396807769600. Its totient is φ = 33444617256960.

The previous prime is 91659353091907. The next prime is 91659353091949. The reversal of 91659353091922 is 22919035395619.

It is a super-2 number, since 2×91659353091922² (a number of 29 digits) contains 22 as substring.

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, 641131704 + ... + 641274652.

It is an arithmetic number, because the mean of its divisors is an integer number (1424975060700).

Almost surely, 2^{91659353091922} is an apocalyptic number.

91659353091922 is a deficient number, since it is larger than the sum of its proper divisors (90737454677678).

91659353091922 is a wasteful number, since it uses less digits than its factorization.

91659353091922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144196.

The product of its (nonzero) digits is 35429400, while the sum is 64.

The spelling of 91659353091922 in words is "ninety-one trillion, six hundred fifty-nine billion, three hundred fifty-three million, ninety-one thousand, nine hundred twenty-two".