44556952221 has 12 divisors (see below), whose sum is σ = 64386057372. Its totient is φ = 29692627776.

The previous prime is 44556952177. The next prime is 44556952229. The reversal of 44556952221 is 12225965544.

44556952221 is a `hidden beast` number, since 4 + 4 + 556 + 95 + 2 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15354927225 + 29202024996 = 123915^2 + 170886^2 .

It is not a de Polignac number, because 44556952221 - 2¹⁴ = 44556935837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44556952229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 977056 + ... + 1021641.

It is an arithmetic number, because the mean of its divisors is an integer number (5365504781).

Almost surely, 2^44556952221 is an apocalyptic number.

It is an amenable number.

44556952221 is a deficient number, since it is larger than the sum of its proper divisors (19829105151).

44556952221 is a wasteful number, since it uses less digits than its factorization.

44556952221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001180 (or 2001177 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 44556952221 in words is "forty-four billion, five hundred fifty-six million, nine hundred fifty-two thousand, two hundred twenty-one".