90457537165 has 32 divisors (see below), whose sum is σ = 112821641856. Its totient is φ = 69572321280.

The previous prime is 90457537153. The next prime is 90457537169. The reversal of 90457537165 is 56173575409.

It is not a de Polignac number, because 90457537165 - 2²¹ = 90455440013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90457537169) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 32856429 + ... + 32859181.

It is an arithmetic number, because the mean of its divisors is an integer number (3525676308).

Almost surely, 2^90457537165 is an apocalyptic number.

It is an amenable number.

90457537165 is a deficient number, since it is larger than the sum of its proper divisors (22364104691).

90457537165 is a wasteful number, since it uses less digits than its factorization.

90457537165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149.

The product of its (nonzero) digits is 3969000, while the sum is 52.

The spelling of 90457537165 in words is "ninety billion, four hundred fifty-seven million, five hundred thirty-seven thousand, one hundred sixty-five".