Around 17 million..
There is no exact number of cities in the world, as it depends on the definition of a city and can vary between countries. However, it is estimated that there are thousands of cities globally.
total no. of companies is avg. 100000000 through world wide.
9
580
25000
Zero
812
Total universities in the world-1,which is tending towards the total number
22
580
203
45000000