1326345562511 has 2 divisors, whose sum is σ = 1326345562512. Its totient is φ = 1326345562510.

The previous prime is 1326345562501. The next prime is 1326345562513. The reversal of 1326345562511 is 1152655436231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326345562511 is a prime.

It is a Sophie Germain prime.

Together with 1326345562513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326345562513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663172781255 + 663172781256.

It is an arithmetic number, because the mean of its divisors is an integer number (663172781256).

Almost surely, 2^{1326345562511} is an apocalyptic number.

1326345562511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326345562511 is an equidigital number, since it uses as much as digits as its factorization.

1326345562511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 44.

The spelling of 1326345562511 in words is "one trillion, three hundred twenty-six billion, three hundred forty-five million, five hundred sixty-two thousand, five hundred eleven".