80560217656441 has 2 divisors, whose sum is σ = 80560217656442. Its totient is φ = 80560217656440.

The previous prime is 80560217656417. The next prime is 80560217656487. The reversal of 80560217656441 is 14465671206508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71917676024041 + 8642541632400 = 8480429^2 + 2939820^2 .

It is a cyclic number.

It is not a de Polignac number, because 80560217656441 - 2⁵ = 80560217656409 is a prime.

It is not a weakly prime, because it can be changed into another prime (80560217650441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40280108828220 + 40280108828221.

It is an arithmetic number, because the mean of its divisors is an integer number (40280108828221).

Almost surely, 2^{80560217656441} is an apocalyptic number.

It is an amenable number.

80560217656441 is a deficient number, since it is larger than the sum of its proper divisors (1).

80560217656441 is an equidigital number, since it uses as much as digits as its factorization.

80560217656441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 80560217656441 in words is "eighty trillion, five hundred sixty billion, two hundred seventeen million, six hundred fifty-six thousand, four hundred forty-one".