File geodatabase size and name limits are as follows:
File geodatabase size: No limit
Table or feature class size: 1 TB (default), 4 GB or 256 TB with keyword
Number of feature classes and tables: 2,147,483,647
Number of fields in a feature class or table: 65,534
Number of rows in a feature class or table: 2,147,483,647
Geodatabase name length: Number of characters the operating system allows in a folder name
Feature class or table name length: 160 characters
Field name length: 64 characters
Text field width: 2,147,483,647