22665464448 has 384 divisors, whose sum is σ = 70013583360. Its totient is φ = 6478940160.

The previous prime is 22665464417. The next prime is 22665464449. The reversal of 22665464448 is 84446456622.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 22665464448.

It is not an unprimeable number, because it can be changed into a prime (22665464449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135721261 + ... + 135721427.

It is an arithmetic number, because the mean of its divisors is an integer number (182327040).

Almost surely, 2^22665464448 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 22665464448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35006791680).

22665464448 is an abundant number, since it is smaller than the sum of its proper divisors (47348118912).

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

22665464448 is a wasteful number, since it uses less digits than its factorization.

22665464448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 333 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 51.

The spelling of 22665464448 in words is "twenty-two billion, six hundred sixty-five million, four hundred sixty-four thousand, four hundred forty-eight".