6664831359 has 32 divisors (see below), whose sum is σ = 9323596800. Its totient is φ = 4229232000.

The previous prime is 6664831357. The next prime is 6664831367. The reversal of 6664831359 is 9531384666.

It is a happy number.

It is not a de Polignac number, because 6664831359 - 2¹ = 6664831357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664831357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5422357 + ... + 5423585.

It is an arithmetic number, because the mean of its divisors is an integer number (291362400).

Almost surely, 2^6664831359 is an apocalyptic number.

6664831359 is a deficient number, since it is larger than the sum of its proper divisors (2658765441).

6664831359 is a wasteful number, since it uses less digits than its factorization.

6664831359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095.

The product of its digits is 2799360, while the sum is 51.

The square root of 6664831359 is about 81638.4184008975. The cubic root of 6664831359 is about 1881.8993328471.

The spelling of 6664831359 in words is "six billion, six hundred sixty-four million, eight hundred thirty-one thousand, three hundred fifty-nine".