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68158392119680 = 275106497487687
BaseRepresentation
bin11110111111101010111001…
…10000000011000110000000
322221022212201112111021200111
433133311130300003012000
532413201341340312210
6400543311051201104
720233165331650312
oct1737653460030600
9287285645437614
1068158392119680
111a7988a2514195
127789677746194
132c05402577695
1412b8c531437b2
157d2e5224b88a
hex3dfd5cc03180

68158392119680 has 32 divisors (see below), whose sum is σ = 162941156162640. Its totient is φ = 27263356847616.

The previous prime is 68158392119659. The next prime is 68158392119777. The reversal of 68158392119680 is 8691129385186.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53248743204 + ... + 53248744483.

Almost surely, 268158392119680 is an apocalyptic number.

It is an amenable number.

68158392119680 is an abundant number, since it is smaller than the sum of its proper divisors (94782764042960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68158392119680 is a wasteful number, since it uses less digits than its factorization.

68158392119680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106497487706 (or 106497487694 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 67.

The spelling of 68158392119680 in words is "sixty-eight trillion, one hundred fifty-eight billion, three hundred ninety-two million, one hundred nineteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 106497487687 212994975374 425989950748 532487438435 851979901496 1064974876870 1703959802992 2129949753740 3407919605984 4259899507480 6815839211968 8519799014960 13631678423936 17039598029920 34079196059840 68158392119680