5573944665 has 16 divisors (see below), whose sum is σ = 9909235200. Its totient is φ = 2972770416.

The previous prime is 5573944657. The next prime is 5573944669. The reversal of 5573944665 is 5664493755.

5573944665 is a `hidden beast` number, since 5 + 573 + 9 + 4 + 4 + 6 + 65 = 666.

It is not a de Polignac number, because 5573944665 - 2³ = 5573944657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5573944669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20644105 + ... + 20644374.

It is an arithmetic number, because the mean of its divisors is an integer number (619327200).

Almost surely, 2^5573944665 is an apocalyptic number.

It is an amenable number.

5573944665 is a deficient number, since it is larger than the sum of its proper divisors (4335290535).

5573944665 is a wasteful number, since it uses less digits than its factorization.

5573944665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41288493 (or 41288487 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 54.

The square root of 5573944665 is about 74658.8552349954. The cubic root of 5573944665 is about 1773.0495976460.

The spelling of 5573944665 in words is "five billion, five hundred seventy-three million, nine hundred forty-four thousand, six hundred sixty-five".