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260427151061221 is a prime number
BaseRepresentation
bin111011001101101101101011…
…110101000011000011100101
31021011002120222221002202121111
4323031231223311003003211
5233113314301132424341
62321514325341345021
7105566145402500164
oct7315555365030345
91234076887082544
10260427151061221
1175a865974a7a21
1225260639b68171
13b24123753a1b1
144844a544453db
152019493eae681
hexecdb6bd430e5

260427151061221 has 2 divisors, whose sum is σ = 260427151061222. Its totient is φ = 260427151061220.

The previous prime is 260427151061219. The next prime is 260427151061227. The reversal of 260427151061221 is 122160151724062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232049955710596 + 28377195350625 = 15233186^2 + 5327025^2 .

It is a cyclic number.

It is not a de Polignac number, because 260427151061221 - 21 = 260427151061219 is a prime.

Together with 260427151061219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260427151061227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130213575530610 + 130213575530611.

It is an arithmetic number, because the mean of its divisors is an integer number (130213575530611).

Almost surely, 2260427151061221 is an apocalyptic number.

It is an amenable number.

260427151061221 is a deficient number, since it is larger than the sum of its proper divisors (1).

260427151061221 is an equidigital number, since it uses as much as digits as its factorization.

260427151061221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 260427151061221 in words is "two hundred sixty trillion, four hundred twenty-seven billion, one hundred fifty-one million, sixty-one thousand, two hundred twenty-one".