16669643339 has 16 divisors (see below), whose sum is σ = 17099343360. Its totient is φ = 16246440000.

The previous prime is 16669643303. The next prime is 16669643351. The reversal of 16669643339 is 93334696661.

16669643339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16669643339 - 2⁸ = 16669643083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16669643399) 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 in 15 ways as a sum of consecutive naturals, for example, 2258447 + ... + 2265815.

It is an arithmetic number, because the mean of its divisors is an integer number (1068708960).

Almost surely, 2^16669643339 is an apocalyptic number.

16669643339 is a deficient number, since it is larger than the sum of its proper divisors (429700021).

16669643339 is a wasteful number, since it uses less digits than its factorization.

16669643339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802.

The product of its digits is 11337408, while the sum is 56.

The spelling of 16669643339 in words is "sixteen billion, six hundred sixty-nine million, six hundred forty-three thousand, three hundred thirty-nine".