Decillion is an enormous number that is rarely used in day-to-day life. It refers to a figure that consists of 33 zeros, making it an almost unimaginable sum. However, there are synonyms for decillion. For example, the term googol is a term used to describe the number 10 to the power of 100. A vigintillion is another word used to describe a number that consists of 63 zeros. Other synonyms for decillion are quattuordecillion, and sexdecillion, which refer to numbers that have 45 and 51 zeros, respectively. It is worth knowing these synonyms as they can come in handy when dealing with large sums or reading up on scientific research.