44002165664 has 48 divisors (see below), whose sum is σ = 91213879680. Its totient is φ = 20837376000.

The previous prime is 44002165657. The next prime is 44002165693. The reversal of 44002165664 is 46656120044.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2880992 + ... + 2896224.

It is an arithmetic number, because the mean of its divisors is an integer number (1900289160).

Almost surely, 2^44002165664 is an apocalyptic number.

It is an amenable number.

44002165664 is an abundant number, since it is smaller than the sum of its proper divisors (47211714016).

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

44002165664 is a wasteful number, since it uses less digits than its factorization.

44002165664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20013 (or 20005 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 44002165664 in words is "forty-four billion, two million, one hundred sixty-five thousand, six hundred sixty-four".