91490164322 has 6 divisors (see below), whose sum is σ = 137235888129. Its totient is φ = 45744868280.

The previous prime is 91490164303. The next prime is 91490164349. The reversal of 91490164322 is 22346109419.

It can be written as a sum of positive squares in 2 ways, for example, as 67542292321 + 23947872001 = 259889^2 + 154751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=213881.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91490164322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 320822 + ... + 534702.

Almost surely, 2^91490164322 is an apocalyptic number.

91490164322 is a deficient number, since it is larger than the sum of its proper divisors (45745723807).

91490164322 is an frugal number, since it uses more digits than its factorization.

91490164322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427764 (or 213883 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 91490164322 in words is "ninety-one billion, four hundred ninety million, one hundred sixty-four thousand, three hundred twenty-two".