Amazon sold enough 4K TVs this holiday season to reach the top of Mt. Everest 9 times

This year's holiday sales were huge for the online retailer, Amazon. 

In fact, Amazon customers bought enough 4K TVs to reach the top Mount Everest more than nine times, according to CNN. In addition, the Samsung 32-inch Smart LED TV and the Avera 32-inch LED TV were also top sellers. 

The Echo Dot, Fire TV stick, Fire tablet and Amazon Echo all topped the best sellers list, according to a release from the company. 

"Echo and Echo Dot were the best-selling products across Amazon this year, and we’re thrilled that millions of new customers will be introduced to Alexa as a result," said Jeff Wilke, CEO Worldwide Consumer, Amazon. "Despite our best efforts and ramped-up production, we still had trouble keeping them in stock." 

Beyond electronics, Amazon said customers purchased enough "Hamilton: The Revolution" books and albums to give every guest at the Richard Rodgers Theatre in New York City, which is where the show performs, a copy for 96 consecutive shows.

A big year for Amazon Prime

Amazon noted that Dec. 19 was its peak worldwide shipping day this holiday season, but Dec. 23 was its biggest day ever for Prime Now deliveries. Oreo cookies were among the most popular orders that day in the U.S.

The online retailer noted that its fastest Prime Now delivery took place on Christmas Eve in Redondo Beach, California, and only took 13 minutes. 

The final Prime Now order delivered before Christmas arrived at 11:59 p.m. on Dec. 24. Amazon said the order, which was delivered in Irvine, California, included a heated mattress pad, NyQuil and Afrin nasal spray. 

A whopping one billion items were shipped worldwide this holiday season using Amazon Prime, which costs $99 a year, comes with guaranteed shipping and a video streaming service, among other things. 

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