22056311044644 has 12 divisors (see below), whose sum is σ = 51464725770864. Its totient is φ = 7352103681544.

The previous prime is 22056311044619. The next prime is 22056311044709. The reversal of 22056311044644 is 44644011365022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×22056311044644² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22056311044596 and 22056311044605.

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, 919012960182 + ... + 919012960205.

It is an arithmetic number, because the mean of its divisors is an integer number (4288727147572).

Almost surely, 2^{22056311044644} is an apocalyptic number.

It is an amenable number.

22056311044644 is an abundant number, since it is smaller than the sum of its proper divisors (29408414726220).

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

22056311044644 is a wasteful number, since it uses less digits than its factorization.

22056311044644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838025920394 (or 1838025920392 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 22056311044644 in words is "twenty-two trillion, fifty-six billion, three hundred eleven million, forty-four thousand, six hundred forty-four".