That is, if you measure from the center of the earth. This extinct stratovolcano is 20,549 feet above sea level, but because it lies on the equator in Ecuador, it sits in the maximum part of the Earth’s equatorial bulge. Its peak is the farthest from Earth’s center, and the closest point on our planet to the Sun. Measured from sea level, it is only the 37th highest in the Andes. Aconcagua in Chile at 22,283 feet is the highest.
The biggest mountain in the world by far is Denali, in Alaska. It is a “mere” 20,310 feet high, but it rises from a 2,000 foot base with an immense bulk that dwarfs all other mountains in the world. Denali means “the great one” in the indigenous Koyukon language. However…
If you include the undersea part of mountains, the Big Island of Hawai’i, topped by Mauna Kea at 13,803 feet above sea level, is even taller and bigger, rising more than 32,000 feet from the depths. In geologic terms it is a youngster, only about a million years old.