668296954833 has 16 divisors (see below), whose sum is σ = 902760168576. Its totient is φ = 439710710400.

The previous prime is 668296954817. The next prime is 668296954837. The reversal of 668296954833 is 338459692866.

668296954833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 668296954833 - 2⁴ = 668296954817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (668296954837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3428485 + ... + 3618162.

It is an arithmetic number, because the mean of its divisors is an integer number (56422510536).

Almost surely, 2^668296954833 is an apocalyptic number.

It is an amenable number.

668296954833 is a deficient number, since it is larger than the sum of its proper divisors (234463213743).

668296954833 is a wasteful number, since it uses less digits than its factorization.

668296954833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047064.

The product of its digits is 403107840, while the sum is 69.

The spelling of 668296954833 in words is "six hundred sixty-eight billion, two hundred ninety-six million, nine hundred fifty-four thousand, eight hundred thirty-three".