The numeral form representing the quantity of sixty-four.

संख्या

English Usage: There were sixty-four participants in the competition.

Hindi Usage: प्रतियोगिता में चौसठ प्रतिभागी थे।

A number representing sixty-four.

चौसठ

English Usage: The event will take place on the sixty-fourth day of the year.

Hindi Usage: यह कार्यक्रम साल के चौसठवें दिन होगा।