16666112 has 40 divisors (see below), whose sum is σ = 34119096. Its totient is φ = 8128512.

The previous prime is 16666093. The next prime is 16666141. The reversal of 16666112 is 21166661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21638 + ... + 22394.

Almost surely, 2^16666112 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 16666112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17059548).

16666112 is an abundant number, since it is smaller than the sum of its proper divisors (17452984).

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

16666112 is an frugal number, since it uses more digits than its factorization.

16666112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 802 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 16666112 is about 4082.4149715579. The cubic root of 16666112 is about 255.4336437911.

The spelling of 16666112 in words is "sixteen million, six hundred sixty-six thousand, one hundred twelve".