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12615017664311 is a prime number
BaseRepresentation
bin1011011110010010100110…
…1001011000111100110111
31122122222120021022112211222
42313210221221120330313
53123141024010224221
642455131545020555
72441255616630266
oct267445151307467
948588507275758
1012615017664311
114023aa9664917
1214b8a5ba8475b
1370678b73c39a
143187da5645dd
1516d22b3e19ab
hexb7929a58f37

12615017664311 has 2 divisors, whose sum is σ = 12615017664312. Its totient is φ = 12615017664310.

The previous prime is 12615017664281. The next prime is 12615017664313. The reversal of 12615017664311 is 11346671051621.

It is a strong prime.

It is an emirp because it is prime and its reverse (11346671051621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12615017664311 - 218 = 12615017402167 is a prime.

Together with 12615017664313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12615017664313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307508832155 + 6307508832156.

It is an arithmetic number, because the mean of its divisors is an integer number (6307508832156).

Almost surely, 212615017664311 is an apocalyptic number.

12615017664311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615017664311 is an equidigital number, since it uses as much as digits as its factorization.

12615017664311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 12615017664311 in words is "twelve trillion, six hundred fifteen billion, seventeen million, six hundred sixty-four thousand, three hundred eleven".