1361323166473 has 2 divisors, whose sum is σ = 1361323166474. Its totient is φ = 1361323166472.

The previous prime is 1361323166459. The next prime is 1361323166479. The reversal of 1361323166473 is 3746613231631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1330027079824 + 31296086649 = 1153268^2 + 176907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361323166473 - 2¹³ = 1361323158281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361323166479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680661583236 + 680661583237.

It is an arithmetic number, because the mean of its divisors is an integer number (680661583237).

Almost surely, 2^{1361323166473} is an apocalyptic number.

It is an amenable number.

1361323166473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361323166473 is an equidigital number, since it uses as much as digits as its factorization.

1361323166473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 46.

The spelling of 1361323166473 in words is "one trillion, three hundred sixty-one billion, three hundred twenty-three million, one hundred sixty-six thousand, four hundred seventy-three".