13263770555663 has 2 divisors, whose sum is σ = 13263770555664. Its totient is φ = 13263770555662.

The previous prime is 13263770555611. The next prime is 13263770555669. The reversal of 13263770555663 is 36655507736231.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36655507736231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13263770555663 - 2⁸ = 13263770555407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13263770555669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631885277831 + 6631885277832.

It is an arithmetic number, because the mean of its divisors is an integer number (6631885277832).

Almost surely, 2^{13263770555663} is an apocalyptic number.

13263770555663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263770555663 is an equidigital number, since it uses as much as digits as its factorization.

13263770555663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442000, while the sum is 59.

The spelling of 13263770555663 in words is "thirteen trillion, two hundred sixty-three billion, seven hundred seventy million, five hundred fifty-five thousand, six hundred sixty-three".