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12560315541055 = 519353681242467
BaseRepresentation
bin1011011011000110110100…
…1001010110011000111111
31122110202100222121202201221
42312301231021112120333
53121242011234303210
642414043532414211
72434311220354342
oct266615511263077
948422328552657
1012560315541055
114002888748a97
1214aa334317367
13701581777309
14315ccb552459
1516bac8d351da
hexb6c6d25663f

12560315541055 has 16 divisors (see below), whose sum is σ = 15150818592864. Its totient is φ = 9995961507840.

The previous prime is 12560315541047. The next prime is 12560315541091. The reversal of 12560315541055 is 55014551306521.

It is a happy number.

It is not a de Polignac number, because 12560315541055 - 23 = 12560315541047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51680932 + ... + 51923398.

It is an arithmetic number, because the mean of its divisors is an integer number (946926162054).

Almost surely, 212560315541055 is an apocalyptic number.

12560315541055 is a deficient number, since it is larger than the sum of its proper divisors (2590503051809).

12560315541055 is a wasteful number, since it uses less digits than its factorization.

12560315541055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296346.

The product of its (nonzero) digits is 450000, while the sum is 43.

Adding to 12560315541055 its reverse (55014551306521), we get a palindrome (67574866847576).

The spelling of 12560315541055 in words is "twelve trillion, five hundred sixty billion, three hundred fifteen million, five hundred forty-one thousand, fifty-five".

Divisors: 1 5 193 965 53681 242467 268405 1212335 10360433 46796131 51802165 233980655 13015871027 65079355135 2512063108211 12560315541055