1668685200323 has 2 divisors, whose sum is σ = 1668685200324. Its totient is φ = 1668685200322.

The previous prime is 1668685200293. The next prime is 1668685200383. The reversal of 1668685200323 is 3230025868661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1668685200323 - 2⁸ = 1668685200067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1668685200383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 834342600161 + 834342600162.

It is an arithmetic number, because the mean of its divisors is an integer number (834342600162).

Almost surely, 2^{1668685200323} is an apocalyptic number.

1668685200323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1668685200323 is an equidigital number, since it uses as much as digits as its factorization.

1668685200323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 1668685200323 in words is "one trillion, six hundred sixty-eight billion, six hundred eighty-five million, two hundred thousand, three hundred twenty-three".