An SEO analyst interviewer asked me, "How many pages are there in a normal website?"
What is the exact answer for this question?
There is no maximum number of pages for a website in terms of SEO.
As far as SEO goes, your website should have as many high quality pages as you can produce that are relevant to your website's topic. Bad SEO comes not from having too many pages, but from having too many low quality pages.
StackOverflow is a great example of a website with many pages but great SEO. At the time of writing, they have over 33 Million pages indexed in Google Search.