16099 has 4 divisors (see below), whose sum is σ = 17064. Its totient is φ = 15136.

The previous prime is 16097. The next prime is 16103. The reversal of 16099 is 99061.

16099 is nontrivially palindromic in base 16.

16099 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16099 - 2¹ = 16097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457 + ... + 490.

It is an arithmetic number, because the mean of its divisors is an integer number (4266).

2¹⁶⁰⁹⁹ is an apocalyptic number.

16099 is a deficient number, since it is larger than the sum of its proper divisors (965).

16099 is an equidigital number, since it uses as much as digits as its factorization.

16099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 16099 is about 126.8818347913. The cubic root of 16099 is about 25.2502859164.

The spelling of 16099 in words is "sixteen thousand, ninety-nine".