22256166945844 has 144 divisors (see below), whose sum is σ = 48870042137280. Its totient is φ = 8760782638080.

The previous prime is 22256166945823. The next prime is 22256166945919. The reversal of 22256166945844 is 44854966165222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7632639 + ... + 10137529.

It is an arithmetic number, because the mean of its divisors is an integer number (339375292620).

Almost surely, 2^{22256166945844} is an apocalyptic number.

It is an amenable number.

22256166945844 is an abundant number, since it is smaller than the sum of its proper divisors (26613875191436).

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

22256166945844 is a wasteful number, since it uses less digits than its factorization.

22256166945844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504990 (or 2504965 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 64.

The spelling of 22256166945844 in words is "twenty-two trillion, two hundred fifty-six billion, one hundred sixty-six million, nine hundred forty-five thousand, eight hundred forty-four".