90511061504 has 40 divisors (see below), whose sum is σ = 180926425548. Its totient is φ = 45235240960.

The previous prime is 90511061477. The next prime is 90511061527. The reversal of 90511061504 is 40516011509.

It can be written as a sum of positive squares in 2 ways, for example, as 83729209600 + 6781851904 = 289360^2 + 82352^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137584 + ... + 1214544.

Almost surely, 2^90511061504 is an apocalyptic number.

It is an amenable number.

90511061504 is a deficient number, since it is larger than the sum of its proper divisors (90415364044).

90511061504 is an equidigital number, since it uses as much as digits as its factorization.

90511061504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79276 (or 79260 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 90511061504 in words is "ninety billion, five hundred eleven million, sixty-one thousand, five hundred four".