ordinal vs sixty-fourth

ordinal and sixty-fourth both are nouns.

Word	Noun	Adjective	Verb	Adverb
ordinal	Yes	Yes	No	No
sixty-fourth	Yes	Yes	No	No

ordinal (noun)	sixty-fourth (noun)
the number designating place in an ordered sequence	one part in sixty-four equal parts

ordinal (adjective)	sixty-fourth (adjective)
being or denoting a numerical order in a series	the ordinal number of sixty-four in counting order
of or relating to a taxonomic order