22563185244 has 12 divisors (see below), whose sum is σ = 52647432264. Its totient is φ = 7521061744.

The previous prime is 22563185243. The next prime is 22563185261. The reversal of 22563185244 is 44258136522.

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

It is a junction number, because it is equal to n+sod(n) for n = 22563185196 and 22563185205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563185243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940132707 + ... + 940132730.

It is an arithmetic number, because the mean of its divisors is an integer number (4387286022).

Almost surely, 2^22563185244 is an apocalyptic number.

It is an amenable number.

22563185244 is an abundant number, since it is smaller than the sum of its proper divisors (30084247020).

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

22563185244 is a wasteful number, since it uses less digits than its factorization.

22563185244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880265444 (or 1880265442 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The spelling of 22563185244 in words is "twenty-two billion, five hundred sixty-three million, one hundred eighty-five thousand, two hundred forty-four".