90110001108 has 12 divisors (see below), whose sum is σ = 210256669280. Its totient is φ = 30036667032.

The previous prime is 90110001067. The next prime is 90110001139. The reversal of 90110001108 is 80110001109.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×90110001108² (a number of 23 digits) contains 22 as substring.

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, 3754583368 + ... + 3754583391.

Almost surely, 2^90110001108 is an apocalyptic number.

It is an amenable number.

90110001108 is an abundant number, since it is smaller than the sum of its proper divisors (120146668172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90110001108 is a wasteful number, since it uses less digits than its factorization.

90110001108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7509166766 (or 7509166764 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

Subtracting from 90110001108 its reverse (80110001109), we obtain a palindrome (9999999999).

The spelling of 90110001108 in words is "ninety billion, one hundred ten million, one thousand, one hundred eight".