3165565056361 has 2 divisors, whose sum is σ = 3165565056362. Its totient is φ = 3165565056360.

The previous prime is 3165565056317. The next prime is 3165565056397. The reversal of 3165565056361 is 1636505655613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1943779698025 + 1221785358336 = 1394195^2 + 1105344^2 .

It is a cyclic number.

It is not a de Polignac number, because 3165565056361 - 2⁷ = 3165565056233 is a prime.

It is a super-2 number, since 2×3165565056361² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3165565056299 and 3165565056308.

It is not a weakly prime, because it can be changed into another prime (3165565356361) 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, 1582782528180 + 1582782528181.

It is an arithmetic number, because the mean of its divisors is an integer number (1582782528181).

Almost surely, 2^{3165565056361} is an apocalyptic number.

It is an amenable number.

3165565056361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3165565056361 is an equidigital number, since it uses as much as digits as its factorization.

3165565056361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290000, while the sum is 52.

The spelling of 3165565056361 in words is "three trillion, one hundred sixty-five billion, five hundred sixty-five million, fifty-six thousand, three hundred sixty-one".