What is Vigintillion?

Vigintillion is a number with 25 zeros after the digit 1, or 1 followed by 25 zeros. It is an extremely large number that is used to express very big quantities, much larger than a quintillion.
The term "vigintillion" was coined in the early 20th century by the mathematician Edward Kasner, who needed a name for this huge number. He combined the Latin words "vigesimum," meaning "twenty," and "illion," meaning "one billion," to create the word "vigintillion."
Vigintillion is often used in scientific and mathematical contexts to describe extremely large quantities that are beyond the scope of quintillions or other large numbers. For example, if someone were to ask how many atoms are in the observable universe, they might respond by saying that there are approximately 10^80 atoms in the observable universe, which is a vigintillion times larger than a quintillion.
Overall, vigintillion is an extremely large number that is used to express quantities that are far beyond what we can comprehend with our limited human minds. It is a useful tool for scientists and mathematicians to describe the vastness of certain quantities, but it is not a commonly used term in everyday life.