16366183909 has 2 divisors, whose sum is σ = 16366183910. Its totient is φ = 16366183908.

The previous prime is 16366183907. The next prime is 16366183931. The reversal of 16366183909 is 90938166361.

16366183909 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., 16338463684 + 27720225 = 127822^2 + 5265^2 .

It is a cyclic number.

It is not a de Polignac number, because 16366183909 - 2¹ = 16366183907 is a prime.

Together with 16366183907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16366183907) 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, 8183091954 + 8183091955.

It is an arithmetic number, because the mean of its divisors is an integer number (8183091955).

Almost surely, 2^16366183909 is an apocalyptic number.

It is an amenable number.

16366183909 is a deficient number, since it is larger than the sum of its proper divisors (1).

16366183909 is an equidigital number, since it uses as much as digits as its factorization.

16366183909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 16366183909 in words is "sixteen billion, three hundred sixty-six million, one hundred eighty-three thousand, nine hundred nine".