67 (number)
67 is the natural number following 66 and preceding 68. It is an odd and prime number.67 is a Chen prime, an irregular prime, a lucky prime, a Heegner number, a sexy prime, and a Pillai prime. It is also rounded to the nearest whole number as a percent.Internet culture
6-7 is a meme, typically popularized by Generation Alpha. It was originally from a rap song called "Doot Doot ". It is also associated with basketball player LaMelo Ball, who is in height. It is cited as part of the brainrot phenomenon, or poor-quality digital media. "6-7" is often accompanied by a hand gesture, and reportedly means nothing. Due to popularity and widespread use by young people, Dictionary.com named it the word of the year for 2025.