Undefined Character (U+1617F)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𖅿` `𖅿`
UTF-8 Encoding:	`0xF0 0x96 0x85 0xBF`
UTF-16 Encoding:	`0xD818 0xDD7F`
UTF-32 Encoding:	`0x0001617F`

References