166666668

166,666,668 is a natural number, written with commas as one hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-eight. It equals one sixth of 1,000,000,008, since 1,000,000,008 divided by 6 equals 166,666,668.

Arithmetic properties

The number is even and thus divisible by 2. The sum of its digits is 51, so it is divisible by 3 but not by 9. It is also divisible by 4 (the last two digits are 68) and therefore divisible by 12. A precise factorization is 166,666,668 = 2^2 × 3 × 7 × 1,984,127, making the number composite. In another simple form, 166,666,668 = 12 × 13,888,889, since 13,888,889 × 12 equals 166,666,668.

Factorization notes

From the product 2^2 × 3 × 7 × 1,984,127, the remaining factor 1,984,127 is odd and not divisible by small primes up to at least 97. A complete prime factorization would require further testing to determine any larger prime or composite factors.

Context and usage

There is no widely recognized mathematical constant or notable sequence specifically associated with 166,666,668. It is primarily of interest as a specific, evenly divisible integer and as an example of a number that is exactly one sixth of 1,000,000,008.

Overall

166,666,668 is a composite, even integer near 1.67×10^8, with a clear relation to 1,000,000,008 through division by six.