What is another word for octodecillion?
Pronunciation: [ˌɒktədɪsˈɪli͡ən] (IPA) 
Octodecillion is a number so large that it's hard to conceptualize, as it's expressed as 10^57. It's a number that's not used often, and it's rare to hear someone use it in a sentence. However, there are synonyms that can be used to describe this number, including vigintillion, unvigintillion, trevigintillion, quattuorvigintillion, and quinvigintillion. These words, which are commonly used by mathematicians, physicists, and astronomers, all represent extremely large numbers of the order of 10^63 to 10^303. In general, these words are used to describe astronomical or theoretical concepts, such as the size of the universe or the number of possible outcomes in a quantum-mechanical system.
