Code point
U+2116
Glyph appearance depends on your fonts.
U+2116
So<compat> 004E 006FU+2116 NUMERO SIGN is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Letterlike Symbols block.
Choose the representation you need, then copy its value.
U+2116
8470
№
№
№
E2 84 96
2116
00002116
%E2%84%96
\u2116
\u2116
\u2116
\2116