E 13#11, 6th inversion (C# in the bass)
Also written as E13#11/C#.
Notes, from the bass up
C# (bass)EG#BDF#A#
The same notes as E 13#11 (C#, E, G#, B, D, F# and A#), rearranged so C# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.