320744171117177 has 2 divisors, whose sum is σ = 320744171117178. Its totient is φ = 320744171117176.

The previous prime is 320744171117099. The next prime is 320744171117219. The reversal of 320744171117177 is 771711171447023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228268464405136 + 92475706712041 = 15108556^2 + 9616429^2 .

It is a cyclic number.

It is not a de Polignac number, because 320744171117177 - 2⁸ = 320744171116921 is a prime.

It is not a weakly prime, because it can be changed into another prime (320744171107177) 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, 160372085558588 + 160372085558589.

It is an arithmetic number, because the mean of its divisors is an integer number (160372085558589).

Almost surely, 2^{320744171117177} is an apocalyptic number.

It is an amenable number.

320744171117177 is a deficient number, since it is larger than the sum of its proper divisors (1).

320744171117177 is an equidigital number, since it uses as much as digits as its factorization.

320744171117177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1613472, while the sum is 53.

The spelling of 320744171117177 in words is "three hundred twenty trillion, seven hundred forty-four billion, one hundred seventy-one million, one hundred seventeen thousand, one hundred seventy-seven".