11188656671 has 2 divisors, whose sum is σ = 11188656672. Its totient is φ = 11188656670.

The previous prime is 11188656649. The next prime is 11188656697. The reversal of 11188656671 is 17665688111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11188656671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11188656071) 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, 5594328335 + 5594328336.

It is an arithmetic number, because the mean of its divisors is an integer number (5594328336).

Almost surely, 2^11188656671 is an apocalyptic number.

11188656671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11188656671 is an equidigital number, since it uses as much as digits as its factorization.

11188656671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 50.

The spelling of 11188656671 in words is "eleven billion, one hundred eighty-eight million, six hundred fifty-six thousand, six hundred seventy-one".