What is another word for quadrillionth?
Pronunciation: [kwˈɒdɹɪlˌi͡ənθ] (IPA) 
When it comes to talking about incredibly large numbers, "quadrillionth" is certainly a mouthful. Luckily, there are a few other synonyms out there that can be used to describe this mind-blowing figure. One option is "septillionth," which is equal to 1 followed by 24 zeros. Another possibility is "quintillionth," which is slightly smaller with only 21 zeros. If you need to go even larger, you could use "octillionth" (27 zeros) or "nonillionth" (30 zeros). Whatever term you choose, it's important to remember that these numbers are virtually impossible to imagine - but they do exist in the realm of theoretical mathematics and astrophysics.
