6668995239 has 6 divisors (see below), whose sum is σ = 9632993136. Its totient is φ = 4445996820.

The previous prime is 6668995217. The next prime is 6668995253. The reversal of 6668995239 is 9325998666.

It is not a de Polignac number, because 6668995239 - 2⁹ = 6668994727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668995339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370499727 + ... + 370499744.

It is an arithmetic number, because the mean of its divisors is an integer number (1605498856).

Almost surely, 2^6668995239 is an apocalyptic number.

6668995239 is a deficient number, since it is larger than the sum of its proper divisors (2963997897).

6668995239 is a wasteful number, since it uses less digits than its factorization.

6668995239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740999477 (or 740999474 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The square root of 6668995239 is about 81663.9163829411. The cubic root of 6668995239 is about 1882.2911593005.

The spelling of 6668995239 in words is "six billion, six hundred sixty-eight million, nine hundred ninety-five thousand, two hundred thirty-nine".