668313141705 has 96 divisors (see below), whose sum is σ = 1277753667840. Its totient is φ = 323117625600.

The previous prime is 668313141667. The next prime is 668313141719. The reversal of 668313141705 is 507141313866.

It is not a de Polignac number, because 668313141705 - 2¹⁰ = 668313140681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21486765 + ... + 21517845.

It is an arithmetic number, because the mean of its divisors is an integer number (13309934040).

Almost surely, 2^668313141705 is an apocalyptic number.

It is an amenable number.

668313141705 is a deficient number, since it is larger than the sum of its proper divisors (609440526135).

668313141705 is a wasteful number, since it uses less digits than its factorization.

668313141705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31484 (or 31459 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

It can be divided in two parts, 668313 and 141705, that added together give a palindrome (810018).

The spelling of 668313141705 in words is "six hundred sixty-eight billion, three hundred thirteen million, one hundred forty-one thousand, seven hundred five".