22056564144 has 20 divisors (see below), whose sum is σ = 56979457496. Its totient is φ = 7352188032.

The previous prime is 22056564121. The next prime is 22056564151. The reversal of 22056564144 is 44146565022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229755829 + ... + 229755924.

Almost surely, 2^22056564144 is an apocalyptic number.

22056564144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22056564144 is an abundant number, since it is smaller than the sum of its proper divisors (34922893352).

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

22056564144 is a wasteful number, since it uses less digits than its factorization.

22056564144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459511764 (or 459511758 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 22056564144 in words is "twenty-two billion, fifty-six million, five hundred sixty-four thousand, one hundred forty-four".