16855316 has 12 divisors (see below), whose sum is σ = 29627220. Its totient is φ = 8390400.

The previous prime is 16855309. The next prime is 16855331. The reversal of 16855316 is 61355861.

It can be written as a sum of positive squares in 2 ways, for example, as 12250000 + 4605316 = 3500^2 + 2146^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8285 + ... + 10116.

It is an arithmetic number, because the mean of its divisors is an integer number (2468935).

Almost surely, 2^16855316 is an apocalyptic number.

It is an amenable number.

16855316 is a deficient number, since it is larger than the sum of its proper divisors (12771904).

16855316 is a wasteful number, since it uses less digits than its factorization.

16855316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634 (or 18632 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 16855316 is about 4105.5226220300. The cubic root of 16855316 is about 256.3966223352.

It can be divided in two parts, 16855 and 316, that added together give a palindrome (17171).

The spelling of 16855316 in words is "sixteen million, eight hundred fifty-five thousand, three hundred sixteen".