12666850 has 24 divisors (see below), whose sum is σ = 26926848. Its totient is φ = 4342800.

The previous prime is 12666847. The next prime is 12666851. The reversal of 12666850 is 5866621.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12666851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17746 + ... + 18445.

It is an arithmetic number, because the mean of its divisors is an integer number (1121952).

Almost surely, 2^12666850 is an apocalyptic number.

12666850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12666850 is an abundant number, since it is smaller than the sum of its proper divisors (14259998).

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

12666850 is a wasteful number, since it uses less digits than its factorization.

12666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36210 (or 36205 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 12666850 is about 3559.0518400271. The cubic root of 12666850 is about 233.1074798699.

The spelling of 12666850 in words is "twelve million, six hundred sixty-six thousand, eight hundred fifty".