22007915136 has 224 divisors, whose sum is σ = 66088900800. Its totient is φ = 7296625152.

The previous prime is 22007915087. The next prime is 22007915207. The reversal of 22007915136 is 63151970022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22007915136.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 21181305 + ... + 21182343.

Almost surely, 2^22007915136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22007915136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33044450400).

22007915136 is an abundant number, since it is smaller than the sum of its proper divisors (44080985664).

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

22007915136 is an equidigital number, since it uses as much as digits as its factorization.

22007915136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 22007915136 in words is "twenty-two billion, seven million, nine hundred fifteen thousand, one hundred thirty-six".