Undefined Character (U+161D9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𖇙` `𖇙`
UTF-8 Encoding:	`0xF0 0x96 0x87 0x99`
UTF-16 Encoding:	`0xD818 0xDDD9`
UTF-32 Encoding:	`0x000161D9`

References