668032608079 has 2 divisors, whose sum is σ = 668032608080. Its totient is φ = 668032608078.

The previous prime is 668032608059. The next prime is 668032608137. The reversal of 668032608079 is 970806230866.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668032608079 - 2¹³ = 668032599887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668032608029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334016304039 + 334016304040.

It is an arithmetic number, because the mean of its divisors is an integer number (334016304040).

Almost surely, 2^668032608079 is an apocalyptic number.

668032608079 is a deficient number, since it is larger than the sum of its proper divisors (1).

668032608079 is an equidigital number, since it uses as much as digits as its factorization.

668032608079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 668032608079 in words is "six hundred sixty-eight billion, thirty-two million, six hundred eight thousand, seventy-nine".