One hundred and sixty seven point zero zero nine.
Work Step by Step
We begin by writing the whole numbers. In this case, it is 167 ie, One hundred and sixty-seven. After the whole number is the decimal point, which is written as 'point'. The numbers after the decimal point could be written in two ways. Either you can write the names of all digits individually ( zero zero nine) OR you could write nine thousandths. So the final answer is One hundred and sixty-seven point zero zero nine OR One hundred and sixty-seven point nine thousandths.