# Gavin Andresen
# 2011-01-24 14:16:21
# https://bitcointalk.org/index.php?topic=2952.msg40969#msg40969

There are: @p{brk}
  1,461,501,637,330,902,918,203,684,832,716,283,019,655,932,542,976 possible bitcoin addresses. @p{par}

As ribuck says, that is a very big number.  There are approximately: @p{brk}
133,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 @p{par}

.. @p{(link}atoms in the Earth@p{link)}, so even if you used just 100 atoms to store each bitcoin address, you'd run out of atoms before you were done generating addresses. @p{brk}