668392368343 has 16 divisors (see below), whose sum is σ = 770734964736. Its totient is φ = 567765555840.

The previous prime is 668392368317. The next prime is 668392368353. The reversal of 668392368343 is 343863293866.

It is not a de Polignac number, because 668392368343 - 2⁹ = 668392367831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668392368353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6708058 + ... + 6806968.

It is an arithmetic number, because the mean of its divisors is an integer number (48170935296).

Almost surely, 2^668392368343 is an apocalyptic number.

668392368343 is a deficient number, since it is larger than the sum of its proper divisors (102342596393).

668392368343 is a wasteful number, since it uses less digits than its factorization.

668392368343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107574.

The product of its digits is 80621568, while the sum is 61.

The spelling of 668392368343 in words is "six hundred sixty-eight billion, three hundred ninety-two million, three hundred sixty-eight thousand, three hundred forty-three".