44564821056 has 560 divisors, whose sum is σ = 156669638400. Its totient is φ = 12517908480.

The previous prime is 44564820959. The next prime is 44564821069. The reversal of 44564821056 is 65012846544.

It is a happy number.

44564821056 is a `hidden beast` number, since 4 + 4 + 564 + 82 + 1 + 0 + 5 + 6 = 666.

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 79 ways as a sum of consecutive naturals, for example, 126245776 + ... + 126246128.

Almost surely, 2^44564821056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44564821056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78334819200).

44564821056 is an abundant number, since it is smaller than the sum of its proper divisors (112104817344).

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

44564821056 is an equidigital number, since it uses as much as digits as its factorization.

44564821056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 44564821056 in words is "forty-four billion, five hundred sixty-four million, eight hundred twenty-one thousand, fifty-six".