Undefined Character (U+1166F)

Block:	Mongolian Supplement, U+11660 - U+1167F^[1]
Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑙯` `𑙯`
UTF-8 Encoding:	`0xF0 0x91 0x99 0xAF`
UTF-16 Encoding:	`0xD805 0xDE6F`
UTF-32 Encoding:	`0x0001166F`

References