16626 has 16 divisors (see below), whose sum is σ = 35424. Its totient is φ = 5184.

The previous prime is 16619. The next prime is 16631. The reversal of 16626 is 62661.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 7.

It is an unprimeable number.

16626 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 183.

It is an arithmetic number, because the mean of its divisors is an integer number (2214).

2¹⁶⁶²⁶ is an apocalyptic number.

16626 is an abundant number, since it is smaller than the sum of its proper divisors (18798).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17712).

16626 is a wasteful number, since it uses less digits than its factorization.

16626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185.

The product of its digits is 432, while the sum is 21.

The square root of 16626 is about 128.9418473576. The cubic root of 16626 is about 25.5228553259.

The spelling of 16626 in words is "sixteen thousand, six hundred twenty-six".