44212644664 has 32 divisors (see below), whose sum is σ = 85653872640. Its totient is φ = 21372962400.

The previous prime is 44212644661. The next prime is 44212644727. The reversal of 44212644664 is 46644621244.

44212644664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 44212644664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44212644661) 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, 179769 + ... + 347479.

It is an arithmetic number, because the mean of its divisors is an integer number (2676683520).

Almost surely, 2^44212644664 is an apocalyptic number.

It is an amenable number.

44212644664 is a deficient number, since it is larger than the sum of its proper divisors (41441227976).

44212644664 is a wasteful number, since it uses less digits than its factorization.

44212644664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168811 (or 168807 counting only the distinct ones).

The product of its digits is 884736, while the sum is 43.

The spelling of 44212644664 in words is "forty-four billion, two hundred twelve million, six hundred forty-four thousand, six hundred sixty-four".