6668802665 has 8 divisors (see below), whose sum is σ = 9145786560. Its totient is φ = 4572893232.

The previous prime is 6668802659. The next prime is 6668802719. The reversal of 6668802665 is 5662088666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6668802665 - 2⁶ = 6668802601 is a prime.

It is a super-2 number, since 2×6668802665² = 88945857969422204450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95268575 + ... + 95268644.

It is an arithmetic number, because the mean of its divisors is an integer number (1143223320).

Almost surely, 2^6668802665 is an apocalyptic number.

It is an amenable number.

6668802665 is a deficient number, since it is larger than the sum of its proper divisors (2476983895).

6668802665 is a wasteful number, since it uses less digits than its factorization.

6668802665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190537231.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The square root of 6668802665 is about 81662.7373102323. The cubic root of 6668802665 is about 1882.2730414375.

The spelling of 6668802665 in words is "six billion, six hundred sixty-eight million, eight hundred two thousand, six hundred sixty-five".