1288553324161 has 2 divisors, whose sum is σ = 1288553324162. Its totient is φ = 1288553324160.

The previous prime is 1288553324099. The next prime is 1288553324167. The reversal of 1288553324161 is 1614233558821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045424451600 + 243128872561 = 1022460^2 + 493081^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288553324161 - 2³¹ = 1286405840513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1288553324167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644276662080 + 644276662081.

It is an arithmetic number, because the mean of its divisors is an integer number (644276662081).

Almost surely, 2^{1288553324161} is an apocalyptic number.

It is an amenable number.

1288553324161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288553324161 is an equidigital number, since it uses as much as digits as its factorization.

1288553324161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 49.

The spelling of 1288553324161 in words is "one trillion, two hundred eighty-eight billion, five hundred fifty-three million, three hundred twenty-four thousand, one hundred sixty-one".