6668799973 has 8 divisors (see below), whose sum is σ = 7287166656. Its totient is φ = 6052452000.

The previous prime is 6668799941. The next prime is 6668799979. The reversal of 6668799973 is 3799978666.

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 6668799973 - 2⁵ = 6668799941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668799979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497761 + ... + 510982.

It is an arithmetic number, because the mean of its divisors is an integer number (910895832).

Almost surely, 2^6668799973 is an apocalyptic number.

It is an amenable number.

6668799973 is a deficient number, since it is larger than the sum of its proper divisors (618366683).

6668799973 is a wasteful number, since it uses less digits than its factorization.

6668799973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009355.

The product of its digits is 185177664, while the sum is 70.

The square root of 6668799973 is about 81662.7208278049. The cubic root of 6668799973 is about 1882.2727881646.

The spelling of 6668799973 in words is "six billion, six hundred sixty-eight million, seven hundred ninety-nine thousand, nine hundred seventy-three".