668106741423 has 16 divisors (see below), whose sum is σ = 972989926272. Its totient is φ = 404413884000.

The previous prime is 668106741349. The next prime is 668106741443. The reversal of 668106741423 is 324147601866.

It is not a de Polignac number, because 668106741423 - 2¹⁸ = 668106479279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668106741443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12455148 + ... + 12508673.

It is an arithmetic number, because the mean of its divisors is an integer number (60811870392).

Almost surely, 2^668106741423 is an apocalyptic number.

668106741423 is a deficient number, since it is larger than the sum of its proper divisors (304883184849).

668106741423 is a wasteful number, since it uses less digits than its factorization.

668106741423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24964646.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 668106741423 in words is "six hundred sixty-eight billion, one hundred six million, seven hundred forty-one thousand, four hundred twenty-three".