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65668313543470 = 251121091445711161
BaseRepresentation
bin11101110111001100110001…
…00000000111001100101110
322121111211101200100021022021
432323212120200013030232
532101402201231342340
6351355335021340354
716555244012201431
oct1673463040071456
9277454350307267
1065668313543470
1119a18859031500
127446b614076ba
132a84659500711
141230512dbb818
1578d2b4676e4a
hex3bb99880732e

65668313543470 has 96 divisors (see below), whose sum is σ = 130085492872608. Its totient is φ = 23850009216000.

The previous prime is 65668313543449. The next prime is 65668313543473. The reversal of 65668313543470 is 7434531386656.

It is a happy number.

65668313543470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65668313543399 and 65668313543408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65668313543473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5883724690 + ... + 5883735850.

It is an arithmetic number, because the mean of its divisors is an integer number (1355057217423).

Almost surely, 265668313543470 is an apocalyptic number.

65668313543470 is a deficient number, since it is larger than the sum of its proper divisors (64417179329138).

65668313543470 is a wasteful number, since it uses less digits than its factorization.

65668313543470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16738 (or 16727 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 61.

The spelling of 65668313543470 in words is "sixty-five trillion, six hundred sixty-eight billion, three hundred thirteen million, five hundred forty-three thousand, four hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1091 1210 2182 4457 5455 8914 10910 11161 12001 22285 22322 24002 44570 49027 55805 60005 98054 111610 120010 122771 132011 245135 245542 264022 490270 539297 613855 660055 1078594 1227710 1320110 1350481 2696485 2700962 4862587 5392970 6752405 9725174 12176651 13504810 24312935 24353302 48625870 49744577 53488457 60883255 99489154 106976914 121766510 133943161 248722885 267442285 267886322 497445770 534884570 547190347 588373027 669715805 1094380694 1176746054 1339431610 1473374771 2735951735 2941865135 2946749542 5471903470 5883730270 6019093817 7366873855 12038187634 14733747710 30095469085 54271333507 60190938170 108542667014 271356667535 542713335070 596984668577 1193969337154 2984923342885 5969846685770 6566831354347 13133662708694 32834156771735 65668313543470