22712521716 has 96 divisors (see below), whose sum is σ = 60966192000. Its totient is φ = 7303613184.

The previous prime is 22712521709. The next prime is 22712521729. The reversal of 22712521716 is 61712521722.

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

It is a congruent number.

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, 5037135 + ... + 5041641.

It is an arithmetic number, because the mean of its divisors is an integer number (635064500).

Almost surely, 2^22712521716 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 22712521716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30483096000).

22712521716 is an abundant number, since it is smaller than the sum of its proper divisors (38253670284).

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

22712521716 is a wasteful number, since it uses less digits than its factorization.

22712521716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158 (or 6150 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The spelling of 22712521716 in words is "twenty-two billion, seven hundred twelve million, five hundred twenty-one thousand, seven hundred sixteen".