90015187117017 has 16 divisors (see below), whose sum is σ = 122026362465728. Its totient is φ = 59007690319680.

The previous prime is 90015187116949. The next prime is 90015187117021. The reversal of 90015187117017 is 71071178151009.

It is not a de Polignac number, because 90015187117017 - 2⁷ = 90015187116889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90015187117067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77177458 + ... + 78335115.

It is an arithmetic number, because the mean of its divisors is an integer number (7626647654108).

Almost surely, 2^{90015187117017} is an apocalyptic number.

It is an amenable number.

90015187117017 is a deficient number, since it is larger than the sum of its proper divisors (32011175348711).

90015187117017 is a wasteful number, since it uses less digits than its factorization.

90015187117017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155515800.

The product of its (nonzero) digits is 123480, while the sum is 48.

The spelling of 90015187117017 in words is "ninety trillion, fifteen billion, one hundred eighty-seven million, one hundred seventeen thousand, seventeen".