6866166 has 16 divisors (see below), whose sum is σ = 13834224. Its totient is φ = 2271744.

The previous prime is 6866149. The next prime is 6866173. The reversal of 6866166 is 6616686.

6866166 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (864639).

Almost surely, 2^6866166 is an apocalyptic number.

6866166 is an abundant number, since it is smaller than the sum of its proper divisors (6968058).

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

6866166 is a wasteful number, since it uses less digits than its factorization.

6866166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495.

The product of its digits is 62208, while the sum is 39.

The square root of 6866166 is about 2620.3370012271. The cubic root of 6866166 is about 190.0661450219.

The spelling of 6866166 in words is "six million, eight hundred sixty-six thousand, one hundred sixty-six".