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: 1617
                                     DATED: DECEMBER 3, 1997
 
 
                           MERRILL LYNCH & CO., INC.
                          MEDIUM-TERM NOTES, SERIES B
                   DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
                              FLOATING RATE NOTES
 
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<S>                       <C>
 
BASE RATE:                Fed Funds
 
 
INDEX MATURITY:           Weekly Average
 
 
TRADE DATE:               December 3, 1997
 
 
SETTLEMENT DATE:          December 8, 1997
 
 
MATURITY DATE:            December 8, 1998
 
 
REDEMPTION DATE:          N/A
 
 
OPTIONAL REPAYMENT DATES: N/A
 
 
SPREAD:                   0.015% (plus fifteen bps)
 
 
SPREAD MULTIPLIER:        N/A
 
 
MAXIMUM INTEREST RATE:    N/A
 
 
MINIMUM INTEREST RATE:    N/A
 
 
INTEREST RESET DATES:     Weekly, on eachWednesday. The rate will be determined using the average
                          rate for the week period ending on the Wednesday of the proceeding week
                          as published in the Federal Reserve H.15 under heading "Federal Funds"
                          (Effective) under column "Week Ending" .
 
 
COMMISSION:               0.075%
 
 
INTEREST PAYMENT DATES:   The 8th of March, June, September and December commencing March 1998
                          through Maturity, subject to Following Business Day Convention.
 
 
INITIAL INTEREST RATE:    5.49%
 
 
FORM:                     Book-entry
 
 
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