1361202216617 has 2 divisors, whose sum is σ = 1361202216618. Its totient is φ = 1361202216616.

The previous prime is 1361202216581. The next prime is 1361202216631. The reversal of 1361202216617 is 7166122021631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149518488336 + 211683728281 = 1072156^2 + 460091^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361202216617 - 2¹⁴ = 1361202200233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361202216637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680601108308 + 680601108309.

It is an arithmetic number, because the mean of its divisors is an integer number (680601108309).

Almost surely, 2^{1361202216617} is an apocalyptic number.

It is an amenable number.

1361202216617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361202216617 is an equidigital number, since it uses as much as digits as its factorization.

1361202216617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 1361202216617 in words is "one trillion, three hundred sixty-one billion, two hundred two million, two hundred sixteen thousand, six hundred seventeen".