6666130417 has 2 divisors, whose sum is σ = 6666130418. Its totient is φ = 6666130416.

The previous prime is 6666130397. The next prime is 6666130421. The reversal of 6666130417 is 7140316666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6182834161 + 483296256 = 78631^2 + 21984^2 .

It is a cyclic number.

It is not a de Polignac number, because 6666130417 - 2¹⁵ = 6666097649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6666130417.

It is not a weakly prime, because it can be changed into another prime (6666130217) 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, 3333065208 + 3333065209.

It is an arithmetic number, because the mean of its divisors is an integer number (3333065209).

Almost surely, 2^6666130417 is an apocalyptic number.

It is an amenable number.

6666130417 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666130417 is an equidigital number, since it uses as much as digits as its factorization.

6666130417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 6666130417 is about 81646.3741815887. The cubic root of 6666130417 is about 1882.0215933833.

The spelling of 6666130417 in words is "six billion, six hundred sixty-six million, one hundred thirty thousand, four hundred seventeen".