90305585315 has 24 divisors (see below), whose sum is σ = 121499762832. Its totient is φ = 63901687680.

The previous prime is 90305585309. The next prime is 90305585339. The reversal of 90305585315 is 51358550309.

It is not a de Polignac number, because 90305585315 - 2⁴ = 90305585299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524384 + ... + 674973.

It is an arithmetic number, because the mean of its divisors is an integer number (5062490118).

Almost surely, 2^90305585315 is an apocalyptic number.

90305585315 is a deficient number, since it is larger than the sum of its proper divisors (31194177517).

90305585315 is a wasteful number, since it uses less digits than its factorization.

90305585315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199447 (or 1199410 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 44.

The spelling of 90305585315 in words is "ninety billion, three hundred five million, five hundred eighty-five thousand, three hundred fifteen".