16911 has 6 divisors (see below), whose sum is σ = 24440. Its totient is φ = 11268.

The previous prime is 16903. The next prime is 16921. The reversal of 16911 is 11961.

16911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16911 - 2³ = 16903 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 931 + ... + 948.

2¹⁶⁹¹¹ is an apocalyptic number.

16911 is a deficient number, since it is larger than the sum of its proper divisors (7529).

16911 is a wasteful number, since it uses less digits than its factorization.

16911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1882 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 16911 is about 130.0423008102. The cubic root of 16911 is about 25.6678659884.

Subtracting from 16911 its reverse (11961), we obtain a triangular number (4950 = T₉₉).

The spelling of 16911 in words is "sixteen thousand, nine hundred eleven".