6566166 has 24 divisors (see below), whose sum is σ = 14288040. Its totient is φ = 2179296.

The previous prime is 6566089. The next prime is 6566171. The reversal of 6566166 is 6616656.

It is a super-2 number, since 2×6566166² = 86229071879112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6566166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4450 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (595335).

Almost surely, 2^6566166 is an apocalyptic number.

6566166 is an abundant number, since it is smaller than the sum of its proper divisors (7721874).

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

6566166 is a wasteful number, since it uses less digits than its factorization.

6566166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1577 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 6566166 is about 2562.4531215224. The cubic root of 6566166 is about 187.2566656748.

The spelling of 6566166 in words is "six million, five hundred sixty-six thousand, one hundred sixty-six".