2563368323161 has 2 divisors, whose sum is σ = 2563368323162. Its totient is φ = 2563368323160.

The previous prime is 2563368323141. The next prime is 2563368323293. The reversal of 2563368323161 is 1613238633652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2507551425625 + 55816897536 = 1583525^2 + 236256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563368323161 - 2²⁹ = 2562831452249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2563368323141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281684161580 + 1281684161581.

It is an arithmetic number, because the mean of its divisors is an integer number (1281684161581).

Almost surely, 2^{2563368323161} is an apocalyptic number.

It is an amenable number.

2563368323161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563368323161 is an equidigital number, since it uses as much as digits as its factorization.

2563368323161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 49.

The spelling of 2563368323161 in words is "two trillion, five hundred sixty-three billion, three hundred sixty-eight million, three hundred twenty-three thousand, one hundred sixty-one".