I have a collection of sixty-fourmos on my bookshelf.

There are sixty-eighths in a whole.

She is celebrating her sixty-first birthday today.

She ate sixty-one cookies in one sitting.

I have sixty-seconds to complete this task.

The sixty-fifths gathered for their annual reunion.

There are sixty-sevenths in the box.

There are many sixty-fourths in a whole.

The sixty-firsts in line were eager to enter the concert venue.

There are sixty-thirds in the deck of cards.