16855052239 has 2 divisors, whose sum is σ = 16855052240. Its totient is φ = 16855052238.

The previous prime is 16855052231. The next prime is 16855052267. The reversal of 16855052239 is 93225055861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16855052239 - 2³ = 16855052231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16855052231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8427526119 + 8427526120.

It is an arithmetic number, because the mean of its divisors is an integer number (8427526120).

Almost surely, 2^16855052239 is an apocalyptic number.

16855052239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16855052239 is an equidigital number, since it uses as much as digits as its factorization.

16855052239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 16855052239 in words is "sixteen billion, eight hundred fifty-five million, fifty-two thousand, two hundred thirty-nine".