668265275043 has 6 divisors (see below), whose sum is σ = 965272063964. Its totient is φ = 445510183356.

The previous prime is 668265275033. The next prime is 668265275137. The reversal of 668265275043 is 340572562866.

668265275043 is a `hidden beast` number, since 6 + 6 + 8 + 26 + 527 + 50 + 43 = 666.

It is not a de Polignac number, because 668265275043 - 2²⁹ = 667728404131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668265275033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37125848605 + ... + 37125848622.

Almost surely, 2^668265275043 is an apocalyptic number.

668265275043 is a deficient number, since it is larger than the sum of its proper divisors (297006788921).

668265275043 is a wasteful number, since it uses less digits than its factorization.

668265275043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74251697233 (or 74251697230 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 668265275043 in words is "six hundred sixty-eight billion, two hundred sixty-five million, two hundred seventy-five thousand, forty-three".