What is with Sylas' new avatar?

This is a short term topic, since Sylas will be changing his avatar again in the not too distant future. But in the meantime, what is with this new avatar and number?There are two implicit allusions. One is pretty obvious, to make the photo look like a certain common category of photo.But the other is rather more subtle. Why this number?Kudos to anyone who figures it out before the new avatar comes on line to make this thread redundant.

Gotta hand it to you; you guys are good. I thought it would take longer to figure it out.Cheers -- Sylas

111 047 166 145 040 162 145 141 144 040 151 164 056 040 104 157 040 171 157 165 040 150 141 166 145 040 141 156 171 164 150 151 156 147 040 145 154 163 145 040 142 171 040 164 150 145 040 163 141 155 145 040 141 165 164 150 157 162 077

120 141 164 151 145 156 143 145 054 040 147 162 141 163 163 150 157 160 160 145 162 056 040 111 164 047 163 040 141 040 160 165 172 172 154 145 056-- 123 171 154 141 163

The terrible photo I have as my avatar as of April 2004 looks so much like a mug shot that I decided to add a little number to it.The number I chose to add is 666 -- the number of the beast -- but expressed in octal (base 8) because I'm a bit of a computer nut.