90599318645 has 32 divisors (see below), whose sum is σ = 125644970880. Its totient is φ = 61982115840.

The previous prime is 90599318617. The next prime is 90599318681. The reversal of 90599318645 is 54681399509.

It is not a de Polignac number, because 90599318645 - 2¹⁰ = 90599317621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1839146 + ... + 1887764.

It is an arithmetic number, because the mean of its divisors is an integer number (3926405340).

Almost surely, 2^90599318645 is an apocalyptic number.

It is an amenable number.

90599318645 is a deficient number, since it is larger than the sum of its proper divisors (35045652235).

90599318645 is a wasteful number, since it uses less digits than its factorization.

90599318645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50645.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 90599318645 in words is "ninety billion, five hundred ninety-nine million, three hundred eighteen thousand, six hundred forty-five".