16518712339 has 2 divisors, whose sum is σ = 16518712340. Its totient is φ = 16518712338.

The previous prime is 16518712321. The next prime is 16518712349. The reversal of 16518712339 is 93321781561.

It is a happy number.

16518712339 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 an emirp because it is prime and its reverse (93321781561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16518712339 - 2⁷ = 16518712211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16518712349) 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, 8259356169 + 8259356170.

It is an arithmetic number, because the mean of its divisors is an integer number (8259356170).

Almost surely, 2^16518712339 is an apocalyptic number.

16518712339 is a deficient number, since it is larger than the sum of its proper divisors (1).

16518712339 is an equidigital number, since it uses as much as digits as its factorization.

16518712339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The spelling of 16518712339 in words is "sixteen billion, five hundred eighteen million, seven hundred twelve thousand, three hundred thirty-nine".