16855447017 has 16 divisors (see below), whose sum is σ = 22519946240. Its totient is φ = 11213983872.

The previous prime is 16855447009. The next prime is 16855447043. The reversal of 16855447017 is 71074455861.

It is not a de Polignac number, because 16855447017 - 2³ = 16855447009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16855447057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561909 + ... + 3566637.

It is an arithmetic number, because the mean of its divisors is an integer number (1407496640).

Almost surely, 2^16855447017 is an apocalyptic number.

It is an amenable number.

16855447017 is a deficient number, since it is larger than the sum of its proper divisors (5664499223).

16855447017 is a wasteful number, since it uses less digits than its factorization.

16855447017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 16855447017 in words is "sixteen billion, eight hundred fifty-five million, four hundred forty-seven thousand, seventeen".