Divide the array into every three digits, separated by commas, from right to left. Press hundred for the first three digits, thousands for the second, and million for the third.

Press four and press billion to read 5,237,166,234, 5 corresponds to billion, 237 corresponds to million, 166 corresponds to thousands, and 234 corresponds to hundreds, so it reads five billion two hundred and thirty-seven million one hundred and sixty-six thousand two hundred and thirty-four.

Form

Cardinal numerals: Words that express numbers are called cardinal numerals. Its form is as follows:

(1) From 1 to 10 one, two, three, four, five, six, seven, eight, nine, ten.

(2) From 11 to 19 eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen.

Except eleven, twelve, thirteen, fifteen and eighteen as special forms, fourteen, sixteen, seventeen and nineteen are all formed by adding the suffix -teen to the single digit form.