1165141171027 has 2 divisors, whose sum is σ = 1165141171028. Its totient is φ = 1165141171026.

The previous prime is 1165141171021. The next prime is 1165141171049. The reversal of 1165141171027 is 7201711415611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1165141171027 - 2¹¹ = 1165141168979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165141171021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582570585513 + 582570585514.

It is an arithmetic number, because the mean of its divisors is an integer number (582570585514).

Almost surely, 2^{1165141171027} is an apocalyptic number.

1165141171027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165141171027 is an equidigital number, since it uses as much as digits as its factorization.

1165141171027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 37.

Adding to 1165141171027 its reverse (7201711415611), we get a palindrome (8366852586638).

The spelling of 1165141171027 in words is "one trillion, one hundred sixty-five billion, one hundred forty-one million, one hundred seventy-one thousand, twenty-seven".