22116565700 has 18 divisors (see below), whose sum is σ = 47992947786. Its totient is φ = 8846626240.

The previous prime is 22116565697. The next prime is 22116565721. The reversal of 22116565700 is 756561122.

It can be written as a sum of positive squares in 3 ways, for example, as 1610898496 + 20505667204 = 40136^2 + 143198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110582729 + ... + 110582928.

It is an arithmetic number, because the mean of its divisors is an integer number (2666274877).

Almost surely, 2^22116565700 is an apocalyptic number.

22116565700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22116565700 is an abundant number, since it is smaller than the sum of its proper divisors (25876382086).

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

22116565700 is a wasteful number, since it uses less digits than its factorization.

22116565700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221165671 (or 221165664 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 22116565700 in words is "twenty-two billion, one hundred sixteen million, five hundred sixty-five thousand, seven hundred".