16104 has 32 divisors (see below), whose sum is σ = 44640. Its totient is φ = 4800.

The previous prime is 16103. The next prime is 16111. The reversal of 16104 is 40161.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 16104.

It is not an unprimeable number, because it can be changed into a prime (16103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234 + ... + 294.

It is an arithmetic number, because the mean of its divisors is an integer number (1395).

2¹⁶¹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22320).

16104 is an abundant number, since it is smaller than the sum of its proper divisors (28536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16104 is a wasteful number, since it uses less digits than its factorization.

16104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 16104 is about 126.9015366337. The cubic root of 16104 is about 25.2528997095.

Adding to 16104 its reverse (40161), we get a palindrome (56265).

It can be divided in two parts, 16 and 104, that added together give a triangular number (120 = T₁₅).

The spelling of 16104 in words is "sixteen thousand, one hundred four".