668083847623 has 2 divisors, whose sum is σ = 668083847624. Its totient is φ = 668083847622.

The previous prime is 668083847597. The next prime is 668083847677. The reversal of 668083847623 is 326748380866.

668083847623 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 is a cyclic number.

It is not a de Polignac number, because 668083847623 - 2⁵ = 668083847591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668083847693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334041923811 + 334041923812.

It is an arithmetic number, because the mean of its divisors is an integer number (334041923812).

Almost surely, 2^668083847623 is an apocalyptic number.

668083847623 is a deficient number, since it is larger than the sum of its proper divisors (1).

668083847623 is an equidigital number, since it uses as much as digits as its factorization.

668083847623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 668083847623 in words is "six hundred sixty-eight billion, eighty-three million, eight hundred forty-seven thousand, six hundred twenty-three".