6669168 has 80 divisors (see below), whose sum is σ = 19927296. Its totient is φ = 1899520.

The previous prime is 6669163. The next prime is 6669197. The reversal of 6669168 is 8619666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669161) 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 15 ways as a sum of consecutive naturals, for example, 8605 + ... + 9347.

Almost surely, 2^6669168 is an apocalyptic number.

6669168 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9963648).

6669168 is an abundant number, since it is smaller than the sum of its proper divisors (13258128).

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

6669168 is a wasteful number, since it uses less digits than its factorization.

6669168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 776 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 6669168 is about 2582.4732331623. The cubic root of 6669168 is about 188.2307412808.

The spelling of 6669168 in words is "six million, six hundred sixty-nine thousand, one hundred sixty-eight".