27160491121 has 2 divisors, whose sum is σ = 27160491122. Its totient is φ = 27160491120.

The previous prime is 27160491119. The next prime is 27160491191. The reversal of 27160491121 is 12119406172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25492912225 + 1667578896 = 159665^2 + 40836^2 .

It is a cyclic number.

It is not a de Polignac number, because 27160491121 - 2¹ = 27160491119 is a prime.

Together with 27160491119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27160491191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13580245560 + 13580245561.

It is an arithmetic number, because the mean of its divisors is an integer number (13580245561).

Almost surely, 2^27160491121 is an apocalyptic number.

It is an amenable number.

27160491121 is a deficient number, since it is larger than the sum of its proper divisors (1).

27160491121 is an equidigital number, since it uses as much as digits as its factorization.

27160491121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

Adding to 27160491121 its reverse (12119406172), we get a palindrome (39279897293).

The spelling of 27160491121 in words is "twenty-seven billion, one hundred sixty million, four hundred ninety-one thousand, one hundred twenty-one".