90163569836 has 12 divisors (see below), whose sum is σ = 166090786680. Its totient is φ = 42709059360.

The previous prime is 90163569823. The next prime is 90163569857. The reversal of 90163569836 is 63896536109.

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, 593181305 + ... + 593181456.

It is an arithmetic number, because the mean of its divisors is an integer number (13840898890).

Almost surely, 2^90163569836 is an apocalyptic number.

It is an amenable number.

90163569836 is a deficient number, since it is larger than the sum of its proper divisors (75927216844).

90163569836 is a wasteful number, since it uses less digits than its factorization.

90163569836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186362784 (or 1186362782 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 90163569836 in words is "ninety billion, one hundred sixty-three million, five hundred sixty-nine thousand, eight hundred thirty-six".