Undefined Character (U+16DB9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𖶹` `𖶹`
UTF-8 Encoding:	`0xF0 0x96 0xB6 0xB9`
UTF-16 Encoding:	`0xD81B 0xDDB9`
UTF-32 Encoding:	`0x00016DB9`

References