16855859073 has 16 divisors (see below), whose sum is σ = 22621052160. Its totient is φ = 11164172544.

The previous prime is 16855859029. The next prime is 16855859087. The reversal of 16855859073 is 37095855861.

It is a happy number.

It is not a de Polignac number, because 16855859073 - 2²² = 16851664769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16855859173) 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 in 15 ways as a sum of consecutive naturals, for example, 283315 + ... + 337607.

It is an arithmetic number, because the mean of its divisors is an integer number (1413815760).

Almost surely, 2^16855859073 is an apocalyptic number.

It is an amenable number.

16855859073 is a deficient number, since it is larger than the sum of its proper divisors (5765193087).

16855859073 is a wasteful number, since it uses less digits than its factorization.

16855859073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54968.

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 16855859073 in words is "sixteen billion, eight hundred fifty-five million, eight hundred fifty-nine thousand, seventy-three".