Large number naming and the scale of billions, trillions and beyond
https://charlie-wiki.win/index.php/Large_number_naming_and_the_scale_of_billions,_trillions_and_beyond
Large number naming describes the sequence of numbers beyond a million, such as billion and trillion. In the short scale, each step multiplies by a thousand, making a trillion a million times larger than a million. The scale continues with quadrillion, quintillion, and beyond, quickly reaching numbers too vast for everyday life, only useful in astronomy, finance, or national debt.