44840566661 has 16 divisors (see below), whose sum is σ = 49263759360. Its totient is φ = 40475854320.

The previous prime is 44840566649. The next prime is 44840566669. The reversal of 44840566661 is 16666504844.

It is not a de Polignac number, because 44840566661 - 2²⁶ = 44773457797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44840566669) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1328156 + ... + 1361498.

It is an arithmetic number, because the mean of its divisors is an integer number (3078984960).

Almost surely, 2^44840566661 is an apocalyptic number.

It is an amenable number.

44840566661 is a deficient number, since it is larger than the sum of its proper divisors (4423192699).

44840566661 is a wasteful number, since it uses less digits than its factorization.

44840566661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34216.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 44840566661 in words is "forty-four billion, eight hundred forty million, five hundred sixty-six thousand, six hundred sixty-one".