44013611664 has 120 divisors (see below), whose sum is σ = 138006827712. Its totient is φ = 12976968960.

The previous prime is 44013611657. The next prime is 44013611723. The reversal of 44013611664 is 46611631044.

44013611664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316884 + ... + 434099.

Almost surely, 2^44013611664 is an apocalyptic number.

44013611664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44013611664 is an abundant number, since it is smaller than the sum of its proper divisors (93993216048).

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

44013611664 is a wasteful number, since it uses less digits than its factorization.

44013611664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751045 (or 751036 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 44013611664 in words is "forty-four billion, thirteen million, six hundred eleven thousand, six hundred sixty-four".