17220203606057 has 2 divisors, whose sum is σ = 17220203606058. Its totient is φ = 17220203606056.

The previous prime is 17220203606017. The next prime is 17220203606071. The reversal of 17220203606057 is 75060630202271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15032454963241 + 2187748642816 = 3877171^2 + 1479104^2 .

It is a cyclic number.

It is not a de Polignac number, because 17220203606057 - 2⁴² = 12822157094953 is a prime.

It is not a weakly prime, because it can be changed into another prime (17220203606017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8610101803028 + 8610101803029.

It is an arithmetic number, because the mean of its divisors is an integer number (8610101803029).

Almost surely, 2^{17220203606057} is an apocalyptic number.

It is an amenable number.

17220203606057 is a deficient number, since it is larger than the sum of its proper divisors (1).

17220203606057 is an equidigital number, since it uses as much as digits as its factorization.

17220203606057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 17220203606057 in words is "seventeen trillion, two hundred twenty billion, two hundred three million, six hundred six thousand, fifty-seven".