66 (number)

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65 66 67
Cardinal sixty-six
Ordinal 66th
(sixty-sixth)
Factorization 2 × 3 × 11
Divisors 1, 2, 3, 6, 11, 22, 33, 66
Roman numeral LXVI
Binary 10000102
Ternary 21103
Quaternary 10024
Quinary 2315
Senary 1506
Octal 1028
Duodecimal 5612
Hexadecimal 4216
Vigesimal 3620
Base 36 1U36

66 (sixty-six) is the natural number following 65 and preceding 67.

Usages of this number include:

Mathematics[edit]

Science[edit]

Physics[edit]

Astronomy[edit]

Sports[edit]

The Green Bay Packers of the National Football League retired jersey number 66 for linebacker Ray Nitschke. The last Packer to wear number 66 before it was retired in 1983 to honor Nitschke was offensive tackle Larry Pfohl who is better known to pro wrestling fans as Lex Luger.

Jersey number 66 was retired by the Pittsburgh Penguins (National Hockey League) in honor of Mario Lemieux.

Computing[edit]

66 (more specifically 66.667) megahertz (MHz) is a common divisor for the front side bus (FSB) speed, overall central processing unit (CPU) speed, and base bus speed. On a Core 2 CPU, and a Core 2 motherboard, the FSB is 1066 MHz (~16 x 66 MHz), the memory speed is usually 666.67 MHz (~10 x 66 MHz), and the processor speed ranges from 1.86 gigahertz (GHz) (~66 MHz x 28) to 2.93 GHz (~66 MHz x 44), in 266 MHz (~66 MHz x 4) increments.

Cinema[edit]

Television[edit]

  • Route 66 was a popular US television series on CBS from 1960 to 1964.

Other fields[edit]

Route 66 sign

Video games[edit]

  • In the video game Fullmetal Alchemist, elusive villain Barry the Chopper is imprisoned in cell number 66, which later becomes his alias when battling the brothers at Laboratory Five.