16855010181 has 24 divisors (see below), whose sum is σ = 25644638240. Its totient is φ = 10638151200.

The previous prime is 16855010177. The next prime is 16855010231. The reversal of 16855010181 is 18101055861.

16855010181 is a `hidden beast` number, since 16 + 8 + 550 + 10 + 1 + 81 = 666.

16855010181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16855010181 - 2² = 16855010177 is a prime.

It is a super-3 number, since 3×16855010181³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16855010131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229611 + ... + 293991.

Almost surely, 2^16855010181 is an apocalyptic number.

It is an amenable number.

16855010181 is a deficient number, since it is larger than the sum of its proper divisors (8789628059).

16855010181 is a wasteful number, since it uses less digits than its factorization.

16855010181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65937 (or 65934 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 36.

The spelling of 16855010181 in words is "sixteen billion, eight hundred fifty-five million, ten thousand, one hundred eighty-one".