668052315353 has 2 divisors, whose sum is σ = 668052315354. Its totient is φ = 668052315352.

The previous prime is 668052315349. The next prime is 668052315451. The reversal of 668052315353 is 353513250866.

668052315353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403597195849 + 264455119504 = 635293^2 + 514252^2 .

It is a cyclic number.

It is not a de Polignac number, because 668052315353 - 2² = 668052315349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 668052315298 and 668052315307.

It is not a weakly prime, because it can be changed into another prime (668052315253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334026157676 + 334026157677.

It is an arithmetic number, because the mean of its divisors is an integer number (334026157677).

Almost surely, 2^668052315353 is an apocalyptic number.

It is an amenable number.

668052315353 is a deficient number, since it is larger than the sum of its proper divisors (1).

668052315353 is an equidigital number, since it uses as much as digits as its factorization.

668052315353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 668052315353 in words is "six hundred sixty-eight billion, fifty-two million, three hundred fifteen thousand, three hundred fifty-three".