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12668660012 = 2231102166613
BaseRepresentation
bin10111100110001110…
…00110100100101100
31012200220022121110002
423303013012210230
5201421134110022
65453033203432
7625640555561
oct136307064454
935626277402
1012668660012
115411145858
122556860578
13126b850038
14882758868
154e2302092
hex2f31c692c

12668660012 has 12 divisors (see below), whose sum is σ = 22885321536. Its totient is φ = 6129996720.

The previous prime is 12668659967. The next prime is 12668660041. The reversal of 12668660012 is 21006686621.

12668660012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51083183 + ... + 51083430.

It is an arithmetic number, because the mean of its divisors is an integer number (1907110128).

Almost surely, 212668660012 is an apocalyptic number.

It is an amenable number.

12668660012 is a deficient number, since it is larger than the sum of its proper divisors (10216661524).

12668660012 is a wasteful number, since it uses less digits than its factorization.

12668660012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102166648 (or 102166646 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 12668660012 in words is "twelve billion, six hundred sixty-eight million, six hundred sixty thousand, twelve".

Divisors: 1 2 4 31 62 124 102166613 204333226 408666452 3167165003 6334330006 12668660012