6668900003 has 8 divisors (see below), whose sum is σ = 7035264720. Its totient is φ = 6304072320.

The previous prime is 6668899981. The next prime is 6668900023. The reversal of 6668900003 is 3000098666.

It is a happy number.

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

It is not a de Polignac number, because 6668900003 - 2⁸ = 6668899747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6668900003.

It is not an unprimeable number, because it can be changed into a prime (6668900023) 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, 375338 + ... + 392703.

It is an arithmetic number, because the mean of its divisors is an integer number (879408090).

Almost surely, 2^6668900003 is an apocalyptic number.

6668900003 is a deficient number, since it is larger than the sum of its proper divisors (366364717).

6668900003 is a wasteful number, since it uses less digits than its factorization.

6668900003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768517.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6668900003 is about 81663.3332836714. Note that the first 3 decimals coincide. The cubic root of 6668900003 is about 1882.2821992934.

Adding to 6668900003 its reverse (3000098666), we get a palindrome (9668998669).

The spelling of 6668900003 in words is "six billion, six hundred sixty-eight million, nine hundred thousand, three".