12966018 has 48 divisors (see below), whose sum is σ = 29602080. Its totient is φ = 3773952.

The previous prime is 12966007. The next prime is 12966067. The reversal of 12966018 is 81066921.

It is a self number, because there is not a number n which added to its sum of digits gives 12966018.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18930 + ... + 19602.

It is an arithmetic number, because the mean of its divisors is an integer number (616710).

Almost surely, 2^12966018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12966018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14801040).

12966018 is an abundant number, since it is smaller than the sum of its proper divisors (16636062).

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

12966018 is a wasteful number, since it uses less digits than its factorization.

12966018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12966018 is about 3600.8357363257. The cubic root of 12966018 is about 234.9284103648.

It can be divided in two parts, 129660 and 18, that multiplied together give a triangular number (2333880 = T₂₁₆₀).

The spelling of 12966018 in words is "twelve million, nine hundred sixty-six thousand, eighteen".