66 (number)
Encyclopedia : 6 : 66 : 66N : 66 (number)
66 (sixty-six) is the natural number following 65 and preceding 67.
| Cardinal | 66 sixty-six |
| Ordinal | 66th sixty-sixth |
| Factorization | [2 \cdot 3 \cdot 11] |
| Divisors | 2, 3, 6, 11, 22, 33 |
| Roman numeral | LXVI |
| Binary | 1000010 |
| Hexadecimal | 42 |
In mathematics
66 is a sphenic number, a triangular number, a hexagonal number, and a semi-meandric number.In science
- The atomic number of dysprosium, a lanthanide
- Messier object Spiral Galaxy M66, a magnitude 10.0 galaxy in the constellation Leo
- The New General Catalogue [object] NGC 66, a peculiar barred spiral galaxy in the constellation Cetus
- The Saros [number] of the solar eclipse series which began on -756 March 12 and ended on 542 May 1. The duration of Saros series 66 was 1298.1 years, and it contained 73 solar eclipses.
- The Saros [number] of the lunar eclipse series which began on -671 August 12 and ended on 826 January 27. The duration of Saros series 66 was 1496.5 years, and it contained 84 lunar eclipses.
In sports
- 66 is the number belonging to hockey great, Mario Lemieux of the Pittsburgh Penguins.
In other fields
66 is also:
- The designation of the historic Route 66, dubbed the "Mother Road" by novelist John Steinbeck.
- The designation of US Interstate 66, a freeway that runs from Virginia to Washington, D.C..
- The designation of 36 state and 2 territorial highways (see Route 66 (disambiguation).
- The international direct dialing (IDD) code for Thailand.
- The number of the French department Pyrénées-Orientales.
- The name of a German card game, translated from sechsundsechzig.
- The total number of books in the Protestant edition of the Bible (Old Testament and New Testament combined).
- In Abjad numerals, The Name Of Allah (الله) numeric value is 66.
- In Star Wars, Order 66 is a prepared order to the clone troopers to kill the Jedi commanding them.
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