Sixty-sixth
/ˌsɪksti ˈsɪk(s)θ/
"Sixty-sixth" in a Sentence (4 examples)
The answer appears on the sixty-sixth page of the book.
She finished sixty-sixth in the race.
Though in his sixty-sixth year, I have never heard him express any dissatisfaction at the occasional hardships which we have had to encounter.
A sixty-sixth of 1320 is 20.