16855035539 has 2 divisors, whose sum is σ = 16855035540. Its totient is φ = 16855035538.

The previous prime is 16855035493. The next prime is 16855035569. The reversal of 16855035539 is 93553055861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16855035539 is a prime.

It is not a weakly prime, because it can be changed into another prime (16855035569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8427517769 + 8427517770.

It is an arithmetic number, because the mean of its divisors is an integer number (8427517770).

Almost surely, 2^16855035539 is an apocalyptic number.

16855035539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16855035539 is an equidigital number, since it uses as much as digits as its factorization.

16855035539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430000, while the sum is 50.

The spelling of 16855035539 in words is "sixteen billion, eight hundred fifty-five million, thirty-five thousand, five hundred thirty-nine".