22651508712 has 128 divisors (see below), whose sum is σ = 66261888000. Its totient is φ = 6450058944.

The previous prime is 22651508651. The next prime is 22651508731. The reversal of 22651508712 is 21780515622.

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, 2522743 + ... + 2531705.

It is an arithmetic number, because the mean of its divisors is an integer number (517671000).

Almost surely, 2^22651508712 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 22651508712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33130944000).

22651508712 is an abundant number, since it is smaller than the sum of its proper divisors (43610379288).

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

22651508712 is a wasteful number, since it uses less digits than its factorization.

22651508712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300 (or 9282 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 22651508712 in words is "twenty-two billion, six hundred fifty-one million, five hundred eight thousand, seven hundred twelve".