90305500636 has 12 divisors (see below), whose sum is σ = 170191135912. Its totient is φ = 41679461808.

The previous prime is 90305500627. The next prime is 90305500643. The reversal of 90305500636 is 63600550309.

It is a junction number, because it is equal to n+sod(n) for n = 90305500595 and 90305500604.

It is a congruent number.

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, 868322070 + ... + 868322173.

Almost surely, 2^90305500636 is an apocalyptic number.

It is an amenable number.

90305500636 is a deficient number, since it is larger than the sum of its proper divisors (79885635276).

90305500636 is a wasteful number, since it uses less digits than its factorization.

90305500636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736644260 (or 1736644258 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 37.

The spelling of 90305500636 in words is "ninety billion, three hundred five million, five hundred thousand, six hundred thirty-six".