666066060679 has 2 divisors, whose sum is σ = 666066060680. Its totient is φ = 666066060678.

The previous prime is 666066060599. The next prime is 666066060743. The reversal of 666066060679 is 976060660666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666066060679 - 2¹⁹ = 666065536391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666066064679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333033030339 + 333033030340.

It is an arithmetic number, because the mean of its divisors is an integer number (333033030340).

Almost surely, 2^666066060679 is an apocalyptic number.

666066060679 is a deficient number, since it is larger than the sum of its proper divisors (1).

666066060679 is an equidigital number, since it uses as much as digits as its factorization.

666066060679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 58.

The spelling of 666066060679 in words is "six hundred sixty-six billion, sixty-six million, sixty thousand, six hundred seventy-nine".