3366668666909 has 2 divisors, whose sum is σ = 3366668666910. Its totient is φ = 3366668666908.

The previous prime is 3366668666863. The next prime is 3366668666987. The reversal of 3366668666909 is 9096668666633.

It is a happy number.

3366668666909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2154445646809 + 1212223020100 = 1467803^2 + 1101010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3366668666909 - 2⁸ = 3366668666653 is a prime.

It is a super-2 number, since 2×3366668666909² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3366668606909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1683334333454 + 1683334333455.

It is an arithmetic number, because the mean of its divisors is an integer number (1683334333455).

Almost surely, 2^{3366668666909} is an apocalyptic number.

It is an amenable number.

3366668666909 is a deficient number, since it is larger than the sum of its proper divisors (1).

3366668666909 is an equidigital number, since it uses as much as digits as its factorization.

3366668666909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632586752, while the sum is 74.

The spelling of 3366668666909 in words is "three trillion, three hundred sixty-six billion, six hundred sixty-eight million, six hundred sixty-six thousand, nine hundred nine".