6668178 has 32 divisors (see below), whose sum is σ = 14764032. Its totient is φ = 1990800.

The previous prime is 6668171. The next prime is 6668203. The reversal of 6668178 is 8718666.

It is not an unprimeable number, because it can be changed into a prime (6668171) 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, 3975 + ... + 5397.

It is an arithmetic number, because the mean of its divisors is an integer number (461376).

Almost surely, 2^6668178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6668178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7382016).

6668178 is an abundant number, since it is smaller than the sum of its proper divisors (8095854).

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

6668178 is a wasteful number, since it uses less digits than its factorization.

6668178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510.

The product of its digits is 96768, while the sum is 42.

The square root of 6668178 is about 2582.2815493280. The cubic root of 6668178 is about 188.2214268928.

The spelling of 6668178 in words is "six million, six hundred sixty-eight thousand, one hundred seventy-eight".