6881166 has 32 divisors (see below), whose sum is σ = 15549600. Its totient is φ = 2255040.

The previous prime is 6881131. The next prime is 6881167. The reversal of 6881166 is 6611886.

It is a self number, because there is not a number n which added to its sum of digits gives 6881166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2250 + ... + 4338.

It is an arithmetic number, because the mean of its divisors is an integer number (485925).

Almost surely, 2^6881166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6881166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7774800).

6881166 is an abundant number, since it is smaller than the sum of its proper divisors (8668434).

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

6881166 is a wasteful number, since it uses less digits than its factorization.

6881166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2155 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 6881166 is about 2623.1976669706. The cubic root of 6881166 is about 190.2044521244.

It can be divided in two parts, 688 and 1166, that multiplied together give a palindrome (802208).

The spelling of 6881166 in words is "six million, eight hundred eighty-one thousand, one hundred sixty-six".