Congressman John Dingell addresses employees outside the Flat Rock Assembly in Flat Rock, Mich., Monday, Sept. 10, 2012. The plant, formerly known as AutoAlliance International will continue to produce the Ford Mustang and add the Fusion next year. Flat Rock Assembly will be the U.S. producer of the Fusion, employing 2,900 workers on both vehicle lines. (AP Photo/Carlos Osorio) Rep. John Dingell (D-Mich.) in September 2012. (Carlos Osorio/AP)

On Friday, Rep. John Dingell (D-Mich.) became the longest-serving member of Congress ever, eclipsing the late senator Robert Byrd (D-W.Va.).

To put Dingell's tenure in perspective, here are a few numbers that tell the story:

57, 176: The number of years and days, respectively, that Dingell has served in Congress — all of it in the House

20,997: The number of days that Dingell has served

86: Dingell's age

67: Percentage of his life that Dingell has spent as a member of Congress

24: Percentage of time since the American Revolution that Dingell has served in Congress

11: Number of presidents Dingell has served under, from Dwight Eisenhower to Barack Obama

80: Number of years that a man named John Dingell has represented Dingell's district. Prior to his 57-plus years of service, his father, John Dingell Sr., held the district for more than two decades.

30: Number of elections Dingell has won. He has never lost.

57: The lowest percentage of the vote that Dingell has ever received, in 2010. He failed to crack 60 percent only one other time — during the Republican Revolution in 1994, when he got 59 percent

166 million: The population of the United States when Dingell was first elected in 1955. The population today is nearly double that.

640: The cost, in dollars, of an Air Force toilet seat, according to an investigation Dingell led into wasteful Pentagon contracts. Dingell in the early 1990s was a divisive figure —  somewhat like House Oversight Committee Chairman Darrell Issa (R-Calif.) is today —  known for targeting the powerful.

1: Number of times his family changes its last name. His Polish grandfather changed it from Dzieglewicz to Dingell.

2/11: Dingell's very own holiday, John Dingell Day, lands on Feb. 11, the day he became the longest-serving member of the House in 2009.