22124444544 has 64 divisors (see below), whose sum is σ = 65297850000. Its totient is φ = 7374813696.

The previous prime is 22124444539. The next prime is 22124444567. The reversal of 22124444544 is 44544442122.

22124444544 is a `hidden beast` number, since 22 + 12 + 44 + 44 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22124444499 and 22124444508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197419 + ... + 3204330.

Almost surely, 2^22124444544 is an apocalyptic number.

22124444544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22124444544 is an abundant number, since it is smaller than the sum of its proper divisors (43173405456).

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

22124444544 is an equidigital number, since it uses as much as digits as its factorization.

22124444544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401772 (or 6401754 counting only the distinct ones).

The product of its digits is 163840, while the sum is 36.

Adding to 22124444544 its reverse (44544442122), we get a palindrome (66668886666).

The spelling of 22124444544 in words is "twenty-two billion, one hundred twenty-four million, four hundred forty-four thousand, five hundred forty-four".