17669966497 has 2 divisors, whose sum is σ = 17669966498. Its totient is φ = 17669966496.

The previous prime is 17669966437. The next prime is 17669966521. The reversal of 17669966497 is 79466996671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17118843921 + 551122576 = 130839^2 + 23476^2 .

It is a cyclic number.

It is not a de Polignac number, because 17669966497 - 2¹¹ = 17669964449 is a prime.

It is not a weakly prime, because it can be changed into another prime (17669966437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8834983248 + 8834983249.

It is an arithmetic number, because the mean of its divisors is an integer number (8834983249).

Almost surely, 2^17669966497 is an apocalyptic number.

It is an amenable number.

17669966497 is a deficient number, since it is larger than the sum of its proper divisors (1).

17669966497 is an equidigital number, since it uses as much as digits as its factorization.

17669966497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185177664, while the sum is 70.

The spelling of 17669966497 in words is "seventeen billion, six hundred sixty-nine million, nine hundred sixty-six thousand, four hundred ninety-seven".