22652637564 has 96 divisors (see below), whose sum is σ = 59000610816. Its totient is φ = 6731043840.

The previous prime is 22652637559. The next prime is 22652637569. The reversal of 22652637564 is 46573625622.

It is an interprime number because it is at equal distance from previous prime (22652637559) and next prime (22652637569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22652637569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259122 + ... + 335334.

It is an arithmetic number, because the mean of its divisors is an integer number (614589696).

Almost surely, 2^22652637564 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 22652637564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29500305408).

22652637564 is an abundant number, since it is smaller than the sum of its proper divisors (36347973252).

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

22652637564 is a wasteful number, since it uses less digits than its factorization.

22652637564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76315 (or 76313 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 22652637564 in words is "twenty-two billion, six hundred fifty-two million, six hundred thirty-seven thousand, five hundred sixty-four".