22244428656 has 200 divisors, whose sum is σ = 69500328480. Its totient is φ = 6847593984.

The previous prime is 22244428649. The next prime is 22244428693. The reversal of 22244428656 is 65682444222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 851566 + ... + 877298.

Almost surely, 2^22244428656 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 22244428656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34750164240).

22244428656 is an abundant number, since it is smaller than the sum of its proper divisors (47255899824).

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

22244428656 is a wasteful number, since it uses less digits than its factorization.

22244428656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25805 (or 25790 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 45.

The spelling of 22244428656 in words is "twenty-two billion, two hundred forty-four million, four hundred twenty-eight thousand, six hundred fifty-six".