266 = 2 x 7 x 19.
266 is 222 in base 11.
266 is a divisor of 113 - 1.
The palindromic concatenation reflection of 266 (662266) has a prime factorization with only palindromic factors: 662266 = 2 x 11 x 30103.
2,661,653 = 16532 - 2662.
The gestation period for humans is about 266 days.
Source: Prime Curios!
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