As character names:

U+1D66 GREEK SUBSCRIPT SMALL LETTER BETA character (ᵦ)

As raw characters:

As a string of HTML entities:

ᵦ

Decoder output:

Byte number 1 is decimal 225, hex 0xE1, octal \341, binary 11100001
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 181, hex 0xB5, octal \265, binary 10110101
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 166, hex 0xA6, octal \246, binary 10100110
This is continuation byte 2, expecting 0 more.

U+1D66	GREEK SUBSCRIPT SMALL LETTER BETA
	# <sub> 03B2