What does the Mark of the Beast look like? (Idea for tattoo)

I'm not really a piercing or tattoo person, but I can see myself getting a tattoo and maybe a piercing at some point in my life. If and when I brake down and get a tattoo, I want one on my right hand and of the Mark of the Beast.

Now, I know very little about the Holy Bible (I am currently reading it, though), and the book of Revelation, all I know is that the Mark of the Beast is "the number of his name". So, it would be 666, but the problem is I want it written in whatever numbering system they used back then. I don't know if it would be in the Hebrew numbering system, or if Aramaic had a numbering system.

Also, I was wondering how it would be oriented. For instance, if my hand is at my side with fingers pointing down, is the number upright? Or, if I point my fingers to the sky is it upright?

Any help would be appreciated!

DCLXVI is the Roman numeral though I think

So the Mark of the Beast is actually Six Hundred Sixty Six, not a string of three sixes?

I just had a misconception, that's all.

0101010101

Who is the beast?

Nero Caesar – Hebrew letters = Nron Ksr – Roman numerals = 666

Historical view – Latenios (Greek for Latin – Roman Empire) – Greek values=666

Vicar of God (Vicarus Fili De) – Roman numerals - 666 (This is what the pope has written on his hat)