CONTACT

CAN I CONTRIBUTE THE MAXIMUM PLUS CATCHUP CONTRIBUTIONS (IF I AM AGE 50 OR OLDER) IN REGULAR 401(K) CONTRIBUTIONS AND CONTRIBUTE THE SAME AMOUNT IN ROTH 401(K) CONTRIBUTIONS?

No.  The maximum annual limits apply to 401(k) contributions in aggregate.  You can make either traditional pre-tax 401(k) contributions, Roth after-tax 401(k) contributions or any combination of the two to the top of the annual limit.