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12645116371 is a prime number
BaseRepresentation
bin10111100011011010…
…10010100111010011
31012122021000110122101
423301231102213103
5201344122210441
65450432421231
7625233500326
oct136155224723
935567013571
1012645116371
1153a99250a8
12254a9a7817
1312669c89a4
1487d58a7bd
154e0201231
hex2f1b529d3

12645116371 has 2 divisors, whose sum is σ = 12645116372. Its totient is φ = 12645116370.

The previous prime is 12645116251. The next prime is 12645116377. The reversal of 12645116371 is 17361154621.

It is a strong prime.

It is an emirp because it is prime and its reverse (17361154621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12645116371 - 211 = 12645114323 is a prime.

It is a super-2 number, since 2×126451163712 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12645116371.

It is not a weakly prime, because it can be changed into another prime (12645116377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322558185 + 6322558186.

It is an arithmetic number, because the mean of its divisors is an integer number (6322558186).

Almost surely, 212645116371 is an apocalyptic number.

12645116371 is a deficient number, since it is larger than the sum of its proper divisors (1).

12645116371 is an equidigital number, since it uses as much as digits as its factorization.

12645116371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The spelling of 12645116371 in words is "twelve billion, six hundred forty-five million, one hundred sixteen thousand, three hundred seventy-one".