0o166

0o166 is an octal literal, using the 0o prefix to indicate that the digits following are in base 8. The digits are 1, 6, and 6.

In decimal, 0o166 equals 118. In hexadecimal, it is 0x76, and in binary it is 0b1110110 (or 0b001110110 if padded to nine bits).

In programming contexts, 0o166 is commonly used in languages that support octal literals, such as Python 3 and modern JavaScript (ECMAScript 2015 and later). In Python 3, for example, 0o166 yields the integer 118. In contrast, older C and C++ standards use a leading 0 to denote octal (for example, 0166), not the 0o prefix.

Applications and interpretation vary by context. Octal literals are often associated with Unix-like file permissions, where digits map to read (4), write (2), and execute (1) permissions. However, 0o166 by itself is more typically a numeric literal rather than a complete permission set; in a permission context, the digits would usually form a three-digit octal value representing owner, group, and others.

If interpreted as an ASCII code, decimal 118 corresponds to the lowercase letter 'v'. This can be a coincidental mapping when octal values are converted to character codes.

Summary: 0o166 denotes the octal number 166, equal to decimal 118, hex 0x76, and binary 0b1110110. It is used as an octal numeric literal in languages that support the 0o syntax and is sometimes encountered in contexts involving octal-based permissions or masks.