22566115500 has 96 divisors (see below), whose sum is σ = 66350968320. Its totient is φ = 5959166400.

The previous prime is 22566115393. The next prime is 22566115513. The reversal of 22566115500 is 551166522.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81471 + ... + 227529.

It is an arithmetic number, because the mean of its divisors is an integer number (691155920).

Almost surely, 2^22566115500 is an apocalyptic number.

22566115500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22566115500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33175484160).

22566115500 is an abundant number, since it is smaller than the sum of its proper divisors (43784852820).

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

22566115500 is a wasteful number, since it uses less digits than its factorization.

22566115500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146184 (or 146172 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 22566115500 in words is "twenty-two billion, five hundred sixty-six million, one hundred fifteen thousand, five hundred".