22664757665472 has 224 divisors, whose sum is σ = 66751266812160. Its totient is φ = 6743182970880.

The previous prime is 22664757665471. The next prime is 22664757665479. The reversal of 22664757665472 is 27456675746622.

It is a junction number, because it is equal to n+sod(n) for n = 22664757665397 and 22664757665406.

It is not an unprimeable number, because it can be changed into a prime (22664757665471) 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, 7721583 + ... + 10244625.

It is an arithmetic number, because the mean of its divisors is an integer number (297996726840).

Almost surely, 2^{22664757665472} 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 22664757665472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33375633406080).

22664757665472 is an abundant number, since it is smaller than the sum of its proper divisors (44086509146688).

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

22664757665472 is a wasteful number, since it uses less digits than its factorization.

22664757665472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523191 (or 2523181 counting only the distinct ones).

The product of its digits is 1422489600, while the sum is 69.

The spelling of 22664757665472 in words is "twenty-two trillion, six hundred sixty-four billion, seven hundred fifty-seven million, six hundred sixty-five thousand, four hundred seventy-two".