44423345664 has 60 divisors (see below), whose sum is σ = 128208796716. Its totient is φ = 14807780352.

The previous prime is 44423345651. The next prime is 44423345693. The reversal of 44423345664 is 46654332444.

44423345664 is a `hidden beast` number, since 44 + 42 + 3 + 3 + 4 + 566 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4815634 + ... + 4824849.

Almost surely, 2^44423345664 is an apocalyptic number.

It is an amenable number.

44423345664 is an abundant number, since it is smaller than the sum of its proper divisors (83785451052).

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

44423345664 is an equidigital number, since it uses as much as digits as its factorization.

44423345664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9640507 (or 9640488 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 45.

The spelling of 44423345664 in words is "forty-four billion, four hundred twenty-three million, three hundred forty-five thousand, six hundred sixty-four".