90759109665 has 64 divisors (see below), whose sum is σ = 172546375680. Its totient is φ = 39862437120.

The previous prime is 90759109627. The next prime is 90759109673. The reversal of 90759109665 is 56690195709.

It is not a de Polignac number, because 90759109665 - 2¹⁰ = 90759108641 is a prime.

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, 352147 + ... + 552743.

It is an arithmetic number, because the mean of its divisors is an integer number (2696037120).

Almost surely, 2^90759109665 is an apocalyptic number.

It is an amenable number.

90759109665 is a deficient number, since it is larger than the sum of its proper divisors (81787266015).

90759109665 is a wasteful number, since it uses less digits than its factorization.

90759109665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200782.

The product of its (nonzero) digits is 4592700, while the sum is 57.

The spelling of 90759109665 in words is "ninety billion, seven hundred fifty-nine million, one hundred nine thousand, six hundred sixty-five".