666363060859 has 2 divisors, whose sum is σ = 666363060860. Its totient is φ = 666363060858.

The previous prime is 666363060841. The next prime is 666363060901. The reversal of 666363060859 is 958060363666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666363060859 - 2³¹ = 664215577211 is a prime.

It is not a weakly prime, because it can be changed into another prime (666363060809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333181530429 + 333181530430.

It is an arithmetic number, because the mean of its divisors is an integer number (333181530430).

Almost surely, 2^666363060859 is an apocalyptic number.

666363060859 is a deficient number, since it is larger than the sum of its proper divisors (1).

666363060859 is an equidigital number, since it uses as much as digits as its factorization.

666363060859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25194240, while the sum is 58.

The spelling of 666363060859 in words is "six hundred sixty-six billion, three hundred sixty-three million, sixty thousand, eight hundred fifty-nine".