8666330009 has 2 divisors, whose sum is σ = 8666330010. Its totient is φ = 8666330008.

The previous prime is 8666329999. The next prime is 8666330017. The reversal of 8666330009 is 9000336668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6761443984 + 1904886025 = 82228^2 + 43645^2 .

It is a cyclic number.

It is not a de Polignac number, because 8666330009 - 2²⁰ = 8665281433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8666330089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4333165004 + 4333165005.

It is an arithmetic number, because the mean of its divisors is an integer number (4333165005).

Almost surely, 2^8666330009 is an apocalyptic number.

It is an amenable number.

8666330009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8666330009 is an equidigital number, since it uses as much as digits as its factorization.

8666330009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 8666330009 is about 93093.1254658474. The cubic root of 8666330009 is about 2054.0534519131.

The spelling of 8666330009 in words is "eight billion, six hundred sixty-six million, three hundred thirty thousand, nine".