11781001295663 has 2 divisors, whose sum is σ = 11781001295664. Its totient is φ = 11781001295662.

The previous prime is 11781001295633. The next prime is 11781001295671. The reversal of 11781001295663 is 36659210018711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11781001295663 - 2²⁶ = 11780934186799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11781001295633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5890500647831 + 5890500647832.

It is an arithmetic number, because the mean of its divisors is an integer number (5890500647832).

Almost surely, 2^{11781001295663} is an apocalyptic number.

11781001295663 is a deficient number, since it is larger than the sum of its proper divisors (1).

11781001295663 is an equidigital number, since it uses as much as digits as its factorization.

11781001295663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 11781001295663 in words is "eleven trillion, seven hundred eighty-one billion, one million, two hundred ninety-five thousand, six hundred sixty-three".