666062317 has 2 divisors, whose sum is σ = 666062318. Its totient is φ = 666062316.

The previous prime is 666062281. The next prime is 666062321. The reversal of 666062317 is 713260666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450882756 + 215179561 = 21234^2 + 14669^2 .

It is a cyclic number.

It is not a de Polignac number, because 666062317 - 2²⁷ = 531844589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666062357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333031158 + 333031159.

It is an arithmetic number, because the mean of its divisors is an integer number (333031159).

Almost surely, 2^666062317 is an apocalyptic number.

It is an amenable number.

666062317 is a deficient number, since it is larger than the sum of its proper divisors (1).

666062317 is an equidigital number, since it uses as much as digits as its factorization.

666062317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 666062317 is about 25808.1831402367. The cubic root of 666062317 is about 873.3164108985.

The spelling of 666062317 in words is "six hundred sixty-six million, sixty-two thousand, three hundred seventeen".