135556160689 has 2 divisors, whose sum is σ = 135556160690. Its totient is φ = 135556160688.

The previous prime is 135556160653. The next prime is 135556160767. The reversal of 135556160689 is 986061655531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134518032289 + 1038128400 = 366767^2 + 32220^2 .

It is a cyclic number.

It is not a de Polignac number, because 135556160689 - 2¹⁷ = 135556029617 is a prime.

It is not a weakly prime, because it can be changed into another prime (135556160639) 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, 67778080344 + 67778080345.

It is an arithmetic number, because the mean of its divisors is an integer number (67778080345).

Almost surely, 2^135556160689 is an apocalyptic number.

It is an amenable number.

135556160689 is a deficient number, since it is larger than the sum of its proper divisors (1).

135556160689 is an equidigital number, since it uses as much as digits as its factorization.

135556160689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832000, while the sum is 55.

The spelling of 135556160689 in words is "one hundred thirty-five billion, five hundred fifty-six million, one hundred sixty thousand, six hundred eighty-nine".