22643650662164 has 36 divisors (see below), whose sum is σ = 46243274834484. Its totient is φ = 9673417143936.

The previous prime is 22643650662119. The next prime is 22643650662187. The reversal of 22643650662164 is 46126605634622.

It can be written as a sum of positive squares in 2 ways, for example, as 5456755840900 + 17186894821264 = 2335970^2 + 4145708^2 .

It is a super-2 number, since 2×22643650662164² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184489499 + ... + 184612194.

It is an arithmetic number, because the mean of its divisors is an integer number (1284535412069).

Almost surely, 2^{22643650662164} is an apocalyptic number.

It is an amenable number.

22643650662164 is an abundant number, since it is smaller than the sum of its proper divisors (23599624172320).

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

22643650662164 is a wasteful number, since it uses less digits than its factorization.

22643650662164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369102024 (or 369102015 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 22643650662164 in words is "twenty-two trillion, six hundred forty-three billion, six hundred fifty million, six hundred sixty-two thousand, one hundred sixty-four".