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66714870048 = 2531744339841
BaseRepresentation
bin111110001000100001…
…000010000100100000
320101012110210112202220
4332020201002010200
52043113001320143
650352015111040
74551154016211
oct761041020440
9211173715686
1066714870048
1126325894342
1210b1a812480
1363a2970788
14332c5cb408
151b06ee8d83
hexf88842120

66714870048 has 48 divisors (see below), whose sum is σ = 175140969696. Its totient is φ = 22236456960.

The previous prime is 66714869987. The next prime is 66714870077. The reversal of 66714870048 is 84007841766.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654608 + ... + 1694448.

It is an arithmetic number, because the mean of its divisors is an integer number (3648770202).

Almost surely, 266714870048 is an apocalyptic number.

It is an amenable number.

66714870048 is an abundant number, since it is smaller than the sum of its proper divisors (108426099648).

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

66714870048 is a wasteful number, since it uses less digits than its factorization.

66714870048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57297 (or 57289 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 66714870048 in words is "sixty-six billion, seven hundred fourteen million, eight hundred seventy thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 17443 34886 39841 52329 69772 79682 104658 119523 139544 159364 209316 239046 279088 318728 418632 478092 558176 637456 837264 956184 1274912 1674528 1912368 3824736 694946563 1389893126 2084839689 2779786252 4169679378 5559572504 8339358756 11119145008 16678717512 22238290016 33357435024 66714870048