quintillion
noun
quin·til·lion
kwin-ˈtil-yən 
US
: a number equal to 1 followed by 18 zeros see Table of Numbers
quintillion
adjective
Examples of quintillion in a Sentence
Recent Examples on the Web
The odds of getting a perfect March Madness bracket are astronomically low, estimated at around 1 in 9.2 quintillion.
—
Jay Ginsbach, Forbes, 3 Mar. 2025
Complete randomness would be a 9.2 quintillion chance of picking the perfect NCAA bracket.
—Ars Technica, 20 Mar. 2025
If that number was rounded off to nine quintillion, that’s nine followed by 18 zeroes.
—Blair Kerkhoff, Kansas City Star, 16 Mar. 2025
Gamma-ray bursts are the most energetic explosions in the universe, releasing as much as a quintillion (10 followed by 18 zeroes) times the energy that is radiated by the sun.
—Robert Lea, Space.com, 5 Feb. 2025
See All Example Sentences for quintillion
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Jay Ginsbach, Forbes, 3 Mar. 2025
Complete randomness would be a 9.2 quintillion chance of picking the perfect NCAA bracket.
—Ars Technica, 20 Mar. 2025
If that number was rounded off to nine quintillion, that’s nine followed by 18 zeroes.
—Blair Kerkhoff, Kansas City Star, 16 Mar. 2025
Gamma-ray bursts are the most energetic explosions in the universe, releasing as much as a quintillion (10 followed by 18 zeroes) times the energy that is radiated by the sun.
—Robert Lea, Space.com, 5 Feb. 2025
See All Example Sentences for quintillion
Cite this Entry
“Quintillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quintillion. Accessed 5 May. 2025.
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quintillion
noun
quin·til·lion
kwin-ˈtil-yən
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