22536044544 has 180 divisors, whose sum is σ = 65096495016. Its totient is φ = 6931611648.

The previous prime is 22536044539. The next prime is 22536044569. The reversal of 22536044544 is 44544063522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8305332 + ... + 8308044.

Almost surely, 2^22536044544 is an apocalyptic number.

22536044544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22536044544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32548247508).

22536044544 is an abundant number, since it is smaller than the sum of its proper divisors (42560450472).

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

22536044544 is an equidigital number, since it uses as much as digits as its factorization.

22536044544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

The spelling of 22536044544 in words is "twenty-two billion, five hundred thirty-six million, forty-four thousand, five hundred forty-four".