15966

15966 is a six-digit integer. It follows the integer 15965 and precedes the integer 15967. In Roman numerals, it is represented as XVCMDLXVI. The number is an even number, as it is divisible by 2. Its prime factorization is 2 * 3 * 2661. The sum of its digits is 1 + 5 + 9 + 6 + 6, which equals 27. The number 15966 can be expressed as the sum of two squares in multiple ways, for example, 105^2 + 77^2 = 11025 + 5929 = 15954 (this is close but not exact), or more precisely 118^2 + 50^2 = 13924 + 2500 = 16424 (also not exact). Further investigation into specific mathematical properties or contexts where 15966 might appear is required for more detailed information. It does not appear to be a widely recognized constant or significant number in common scientific or mathematical fields. Its occurrence is likely within specific datasets, calculations, or as an arbitrary identifier.