The Book of Numbers (PocketBook)

The Human Computer explains and simplifies
Everything you always wanted to know about numbers but was difficult to understand
Little known Facts
Ninth power of the ninth power of nine is the largest in the world of numbers that can be expressed with just 3 digits. The answer is mind staggering!
It will contain 369 million digits. To read it normally would take than a year. To write down would require 1164 miles of paper!

Brain Teasers
A necklace was broken during an amorous struggle, 1/3rd of the pearls fell to the ground, 1/5th stayed on the couch, 1/6th were found by the girl, and 1/10th recovered by her lover; six pearls remained on string. Say of how many pearls the necklace was composed.