16666116 has 48 divisors (see below), whose sum is σ = 41583360. Its totient is φ = 5179680.

The previous prime is 16666093. The next prime is 16666141. The reversal of 16666116 is 61166661.

16666116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14731 + ... + 15821.

It is an arithmetic number, because the mean of its divisors is an integer number (866320).

Almost surely, 2^16666116 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 16666116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20791680).

16666116 is an abundant number, since it is smaller than the sum of its proper divisors (24917244).

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

16666116 is a wasteful number, since it uses less digits than its factorization.

16666116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1182 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 16666116 is about 4082.4154614640. The cubic root of 16666116 is about 255.4336642265.

The spelling of 16666116 in words is "sixteen million, six hundred sixty-six thousand, one hundred sixteen".