16715664439 has 2 divisors, whose sum is σ = 16715664440. Its totient is φ = 16715664438.

The previous prime is 16715664419. The next prime is 16715664491. The reversal of 16715664439 is 93446651761.

It is an a-pointer prime, because the next prime (16715664491) can be obtained adding 16715664439 to its sum of digits (52).

It is a weak prime.

It is an emirp because it is prime and its reverse (93446651761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16715664439 - 2²⁷ = 16581446711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16715664419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8357832219 + 8357832220.

It is an arithmetic number, because the mean of its divisors is an integer number (8357832220).

Almost surely, 2^16715664439 is an apocalyptic number.

16715664439 is a deficient number, since it is larger than the sum of its proper divisors (1).

16715664439 is an equidigital number, since it uses as much as digits as its factorization.

16715664439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 52.

The spelling of 16715664439 in words is "sixteen billion, seven hundred fifteen million, six hundred sixty-four thousand, four hundred thirty-nine".