668822482613 has 8 divisors (see below), whose sum is σ = 669344594688. Its totient is φ = 668300576944.

The previous prime is 668822482597. The next prime is 668822482621. The reversal of 668822482613 is 316284228866.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 668822482613 - 2⁴ = 668822482597 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 (668822482663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6779720 + ... + 6877662.

It is an arithmetic number, because the mean of its divisors is an integer number (83668074336).

Almost surely, 2^668822482613 is an apocalyptic number.

It is an amenable number.

668822482613 is a deficient number, since it is larger than the sum of its proper divisors (522112075).

668822482613 is a wasteful number, since it uses less digits than its factorization.

668822482613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103203.

The product of its digits is 10616832, while the sum is 56.

The spelling of 668822482613 in words is "six hundred sixty-eight billion, eight hundred twenty-two million, four hundred eighty-two thousand, six hundred thirteen".