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12668660862886 = 275414261392549
BaseRepresentation
bin1011100001011010011100…
…0001111100111110100110
31122212010000202110101101101
42320112213001330332212
53130030404140103021
642535522532550314
72445165140404240
oct270264701747646
948763022411341
1012668660862886
114044826870986
121507330a8239a
1370b85a2058c2
1431b248a8b090
1516e81aa2ca91
hexb85a707cfa6

12668660862886 has 32 divisors (see below), whose sum is σ = 21763009684800. Its totient is φ = 5418104515200.

The previous prime is 12668660862829. The next prime is 12668660862889. The reversal of 12668660862886 is 68826806686621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668660862889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32076540 + ... + 32469088.

It is an arithmetic number, because the mean of its divisors is an integer number (680094052650).

Almost surely, 212668660862886 is an apocalyptic number.

12668660862886 is a deficient number, since it is larger than the sum of its proper divisors (9094348821914).

12668660862886 is a wasteful number, since it uses less digits than its factorization.

12668660862886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397360.

The product of its (nonzero) digits is 764411904, while the sum is 73.

The spelling of 12668660862886 in words is "twelve trillion, six hundred sixty-eight billion, six hundred sixty million, eight hundred sixty-two thousand, eight hundred eighty-six".

Divisors: 1 2 7 14 541 1082 3787 4261 7574 8522 29827 59654 392549 785098 2305201 2747843 4610402 5495686 16136407 32272814 212369009 424738018 1486583063 1672651289 2973166126 3345302578 11708559023 23417118046 904904347349 1809808694698 6334330431443 12668660862886