Which data type is used for storing phone no.?

Answer 1

We have had a lot of debate over this IRL. I would go for string. (Taking into consideration if you had a number which starts with multiple zeros)

Answer 2

As others mentioned, string is the way to go. For most phone numbers, an int wouldn't be a problem, but as they mentioned, you get into octals when you start throwing zeros on the front of ints.

Answer 3

no..

Answer 4

how

Answer 5

integer.
it is small size on memory.