permutableness

NOUN
14 LETTERS · 5 SYLLABLES · STARTS WITH P

permutableness is a valid 14-letter word worth 20 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3E1R1M3U1T1A1B3L1E1N1E1S1S1
3 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does permutableness mean?