668966298883 has 2 divisors, whose sum is σ = 668966298884. Its totient is φ = 668966298882.

The previous prime is 668966298881. The next prime is 668966298953. The reversal of 668966298883 is 388892669866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668966298883 - 2¹ = 668966298881 is a prime.

Together with 668966298881, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (668966298881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334483149441 + 334483149442.

It is an arithmetic number, because the mean of its divisors is an integer number (334483149442).

Almost surely, 2^668966298883 is an apocalyptic number.

668966298883 is a deficient number, since it is larger than the sum of its proper divisors (1).

668966298883 is an equidigital number, since it uses as much as digits as its factorization.

668966298883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2579890176, while the sum is 79.

The spelling of 668966298883 in words is "six hundred sixty-eight billion, nine hundred sixty-six million, two hundred ninety-eight thousand, eight hundred eighty-three".