17021432161 has 2 divisors, whose sum is σ = 17021432162. Its totient is φ = 17021432160.

The previous prime is 17021432149. The next prime is 17021432179. The reversal of 17021432161 is 16123412071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14171473936 + 2849958225 = 119044^2 + 53385^2 .

It is a cyclic number.

It is not a de Polignac number, because 17021432161 - 2¹¹ = 17021430113 is a prime.

It is not a weakly prime, because it can be changed into another prime (17021432111) 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, 8510716080 + 8510716081.

It is an arithmetic number, because the mean of its divisors is an integer number (8510716081).

Almost surely, 2^17021432161 is an apocalyptic number.

It is an amenable number.

17021432161 is a deficient number, since it is larger than the sum of its proper divisors (1).

17021432161 is an equidigital number, since it uses as much as digits as its factorization.

17021432161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 17021432161 in words is "seventeen billion, twenty-one million, four hundred thirty-two thousand, one hundred sixty-one".