668050208311 has 2 divisors, whose sum is σ = 668050208312. Its totient is φ = 668050208310.

The previous prime is 668050208303. The next prime is 668050208317. The reversal of 668050208311 is 113802050866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 668050208311 - 2³ = 668050208303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668050208317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334025104155 + 334025104156.

It is an arithmetic number, because the mean of its divisors is an integer number (334025104156).

Almost surely, 2^668050208311 is an apocalyptic number.

668050208311 is a deficient number, since it is larger than the sum of its proper divisors (1).

668050208311 is an equidigital number, since it uses as much as digits as its factorization.

668050208311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 668050208311 in words is "six hundred sixty-eight billion, fifty million, two hundred eight thousand, three hundred eleven".