13066866 has 16 divisors (see below), whose sum is σ = 29037600. Its totient is φ = 4355604.

The previous prime is 13066861. The next prime is 13066877. The reversal of 13066866 is 66866031.

13066866 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13066866.

It is not an unprimeable number, because it can be changed into a prime (13066861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120936 + ... + 121043.

It is an arithmetic number, because the mean of its divisors is an integer number (1814850).

Almost surely, 2^13066866 is an apocalyptic number.

13066866 is an abundant number, since it is smaller than the sum of its proper divisors (15970734).

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

13066866 is a wasteful number, since it uses less digits than its factorization.

13066866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241990 (or 241984 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 13066866 is about 3614.8120283080. The cubic root of 13066866 is about 235.5359188996.

The spelling of 13066866 in words is "thirteen million, sixty-six thousand, eight hundred sixty-six".