44440000000664 has 32 divisors (see below), whose sum is σ = 87713178240000. Its totient is φ = 21049889854752.

The previous prime is 44440000000639. The next prime is 44440000000667. The reversal of 44440000000664 is 46600000004444.

It is a self number, because there is not a number n which added to its sum of digits gives 44440000000664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44440000000667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642977 + ... + 9449519.

It is an arithmetic number, because the mean of its divisors is an integer number (2741036820000).

Almost surely, 2^{44440000000664} is an apocalyptic number.

It is an amenable number.

44440000000664 is a deficient number, since it is larger than the sum of its proper divisors (43273178239336).

44440000000664 is a wasteful number, since it uses less digits than its factorization.

44440000000664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839767 (or 8839763 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 44440000000664 in words is "forty-four trillion, four hundred forty billion, six hundred sixty-four", and thus it is an aban number.