16668271339 has 2 divisors, whose sum is σ = 16668271340. Its totient is φ = 16668271338.

The previous prime is 16668271313. The next prime is 16668271343. The reversal of 16668271339 is 93317286661.

It is a happy number.

16668271339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16668271339 - 2⁷ = 16668271211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16668271309) 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, 8334135669 + 8334135670.

It is an arithmetic number, because the mean of its divisors is an integer number (8334135670).

Almost surely, 2^16668271339 is an apocalyptic number.

16668271339 is a deficient number, since it is larger than the sum of its proper divisors (1).

16668271339 is an equidigital number, since it uses as much as digits as its factorization.

16668271339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The spelling of 16668271339 in words is "sixteen billion, six hundred sixty-eight million, two hundred seventy-one thousand, three hundred thirty-nine".