<PAGE>
FILE NO. 333-28537
RULE 424(B)(3)
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED JULY 7, 1997)
(TO PROSPECTUS SUPPLEMENT DATED JULY 7, 1997)
PROSPECTUS NUMBER: 1611
DATED: NOVEMBER 10, 1997
MERRILL LYNCH & CO., INC.
MEDIUM-TERM NOTES, SERIES B
DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
FLOATING RATE NOTES
<TABLE>
<CAPTION>
<S> <C>
BASE RATE: LIBOR
INDEX MATURITY: 3 Month
TRADE DATE: November 10, 1997
SETTLEMENT DATE: November 14, 1997
MATURITY DATE: November 14, 2000
REDEMPTION DATE: N/A
OPTIONAL REPAYMENT DATES: N/A
SPREAD: 0.060%
(Plus six bps)
SPREAD MULTIPLIER: N/A
MAXIMUM INTEREST RATE: N/A
MINIMUM INTEREST RATE: N/A
INTEREST RESET DATES: Quarterly
INTEREST PAYMENT DATES: The 14th of February, May, August, and November commencing
February 14th, 1998 through the Maturity Date; subject to modified
following business day convention.
INITIAL INTEREST RATE: TBD-November 12, 1997
FORM: Book-entry
</TABLE>