1363045067561 has 2 divisors, whose sum is σ = 1363045067562. Its totient is φ = 1363045067560.

The previous prime is 1363045067521. The next prime is 1363045067627. The reversal of 1363045067561 is 1657605403631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1349639827600 + 13405239961 = 1161740^2 + 115781^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363045067561 - 2⁶ = 1363045067497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1363045067521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681522533780 + 681522533781.

It is an arithmetic number, because the mean of its divisors is an integer number (681522533781).

Almost surely, 2^{1363045067561} is an apocalyptic number.

It is an amenable number.

1363045067561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363045067561 is an equidigital number, since it uses as much as digits as its factorization.

1363045067561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 1363045067561 in words is "one trillion, three hundred sixty-three billion, forty-five million, sixty-seven thousand, five hundred sixty-one".