cenxiquipilli, or cexiquipilli.
160,000.

cempoalxiquipilli = 20 x 8000.
3,200,000.

centzonxiquipilli = 400 x 8000.
64,000,000.

cempoaltzonxiquipilli = 20 x 400 x 8000.
Up to 160,000 the Nahuatl system is as simple and regular in its construction as the English.

But at this point it fails in the formation of a new unit, or rather in the expression of its new unit by a simple word; and in the expression of all higher numbers it is forced to resort in some measure to compound terms, just as the English might have done had it not been able to borrow from the Italian.