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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: 1641
DATED: JANUARY 20, 1998
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: LIBOR
INDEX MATURITY: One Month
TRADE DATE: January 20, 1998
SETTLEMENT DATE: January 23, 1998
MATURITY DATE: January 25, 1999
REDEMPTION DATE: N/A
OPTIONAL REPAYMENT DATES: N/A
SPREAD: -0.050%
(Minus five bps)
SPREAD MULTIPLIER: N/A
COMMISSION: 0.075%
MAXIMUM INTEREST RATE: N/A
MINIMUM INTEREST RATE: N/A
INTEREST RESET DATES: Monthly
INTEREST PAYMENT DATES: The 25th of each month commencing February 1998 through Maturity,
subject to Modified Following Business Day Convention.
INITIAL INTEREST RATE: 5.57109%
FORM: Book-entry
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CUSIP # 59018SZN7
PRINCIPAL $120,000,000.00