16955 has 4 divisors (see below), whose sum is σ = 20352. Its totient is φ = 13560.

The previous prime is 16943. The next prime is 16963. The reversal of 16955 is 55961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55961 = 107 ⋅523.

It is not a de Polignac number, because 16955 - 2⁸ = 16699 is a prime.

It is a Duffinian 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, 1691 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (5088).

2¹⁶⁹⁵⁵ is an apocalyptic number.

16955 is a deficient number, since it is larger than the sum of its proper divisors (3397).

16955 is an equidigital number, since it uses as much as digits as its factorization.

16955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396.

The product of its digits is 1350, while the sum is 26.

The square root of 16955 is about 130.2113666313. The cubic root of 16955 is about 25.6901080797.

The spelling of 16955 in words is "sixteen thousand, nine hundred fifty-five".