It had to be completely arbitrary for the story. If there was some deep hidden meaning, it wouldn't have been nearly as funny. Even if the number meant somethin

It had to be completely arbitrary for the story. If there was some deep hidden meaning, it wouldn't have been nearly as funny. Even if the number meant something to Adams, it was important that it was meaningless and random in the story, so I'm guessing he'd never let on. Its the same kind of humor as "a duck!" weighing more than a witch. There's no "ooohhhh" of deep understanding, just a delightful WTF!?