2636063516641 has 2 divisors, whose sum is σ = 2636063516642. Its totient is φ = 2636063516640.

The previous prime is 2636063516621. The next prime is 2636063516687. The reversal of 2636063516641 is 1466153606362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2229956836416 + 406106680225 = 1493304^2 + 637265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2636063516641 - 2²¹ = 2636061419489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2636063516621) 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, 1318031758320 + 1318031758321.

It is an arithmetic number, because the mean of its divisors is an integer number (1318031758321).

Almost surely, 2^{2636063516641} is an apocalyptic number.

It is an amenable number.

2636063516641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2636063516641 is an equidigital number, since it uses as much as digits as its factorization.

2636063516641 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 2636063516641 in words is "two trillion, six hundred thirty-six billion, sixty-three million, five hundred sixteen thousand, six hundred forty-one".