90165674837 has 24 divisors (see below), whose sum is σ = 109085419872. Its totient is φ = 74249935200.

The previous prime is 90165674831. The next prime is 90165674849. The reversal of 90165674837 is 73847656109.

It is not a de Polignac number, because 90165674837 - 2¹⁶ = 90165609301 is a prime.

It is a super-2 number, since 2×90165674837² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90165674831) 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 23 ways as a sum of consecutive naturals, for example, 222239 + ... + 479292.

It is an arithmetic number, because the mean of its divisors is an integer number (4545225828).

Almost surely, 2^90165674837 is an apocalyptic number.

It is an amenable number.

90165674837 is a deficient number, since it is larger than the sum of its proper divisors (18919745035).

90165674837 is a wasteful number, since it uses less digits than its factorization.

90165674837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701649 (or 701642 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 90165674837 in words is "ninety billion, one hundred sixty-five million, six hundred seventy-four thousand, eight hundred thirty-seven".