Before we talk about the words “Amount and Number”, let us see the paragraph below:
Payday loan or cash advance programs allow you to borrow an amount of money up to $1500. However, before you apply for your payday loan or cash advance, you have to consider a number of requirements.
From the paragraph above, we can conclude as follow:
Amount is used to refer to a quantity, uncountable nouns.
Number is used to refer to countable nouns (if you can count the nouns by the numbers one, two, and so on, it means you can count the nouns).