Well, the title made me think about some written version of 69.
Then I went searching for the importance of this number and look what I found out.
69 is a congruent number—a positive integer that is the area of a right triangle with three rational number sides—and an amenable number because it can be divided evenly by 2. 69 can be expressed as the sum of consecutive positive integers in multiple ways, making it a polite number.