What is the next number after quad trillion?

The term "quad trillion" typically refers to a number followed by 15 zeros, which is 1,000,000,000,000,000. The next number after quad trillion is often referred to as "quintillion," which is 1,000 times larger, or 1,000,000,000,000,000,000 (15 zeros followed by three additional zeros). In the short scale system, this progression continues with sextillion, septillion, and so on.