SAN FRANCISCO, July 18 -- U.S. top online retailer Amazon said Wednesday its prime members worldwide purchased a record of more than 100 million products during the 36-hour Prime Day this year.

The Prime Day purchase was "the biggest shopping event in Amazon history," said the company, without specifying the details of total dollar value.

This year's Prime Day, a major summer marketing event for the world's largest online retailer, started on July 16 and lasted 36 hours. 

The shopping opportunities were offered only to Amazon's Prime members from 17 countries. Amazon said best sellers worldwide were the Fire TV Stick with Alexa Voice Remote and Echo Dot.

"Prime Day offers us a unique opportunity to thank Prime members with our best deals," said Jeff Wilke, CEO Worldwide Consumer of Amazon.

The U.S. retailing giant said small and medium-sized businesses selling on Amazon far exceeded 1 billion U.S. dollars in sales in this Prime Day.

It said its customers purchased more than 5 million items in categories such as toys, beauty products, PCs and computer accessories, apparel and kitchen products. 

Amazon CEO Jeff Bezos disclosed for the first time in April this year that his company has a total of more than 100 million Prime members worldwide.