6366222209 has 2 divisors, whose sum is σ = 6366222210. Its totient is φ = 6366222208.

The previous prime is 6366222199. The next prime is 6366222227. The reversal of 6366222209 is 9022226636.

6366222209 is digitally balanced in base 3, 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., 3994240000 + 2371982209 = 63200^2 + 48703^2 .

It is a cyclic number.

It is not a de Polignac number, because 6366222209 - 2⁴ = 6366222193 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 (6366222409) 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, 3183111104 + 3183111105.

It is an arithmetic number, because the mean of its divisors is an integer number (3183111105).

Almost surely, 2^6366222209 is an apocalyptic number.

It is an amenable number.

6366222209 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366222209 is an equidigital number, since it uses as much as digits as its factorization.

6366222209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 6366222209 is about 79788.6095191538. The cubic root of 6366222209 is about 1853.3634657263.

The spelling of 6366222209 in words is "six billion, three hundred sixty-six million, two hundred twenty-two thousand, two hundred nine".