11655664211 has 2 divisors, whose sum is σ = 11655664212. Its totient is φ = 11655664210.

The previous prime is 11655664103. The next prime is 11655664259. The reversal of 11655664211 is 11246655611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11655664211 is a prime.

It is not a weakly prime, because it can be changed into another prime (11655664271) 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, 5827832105 + 5827832106.

It is an arithmetic number, because the mean of its divisors is an integer number (5827832106).

Almost surely, 2^11655664211 is an apocalyptic number.

11655664211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655664211 is an equidigital number, since it uses as much as digits as its factorization.

11655664211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The spelling of 11655664211 in words is "eleven billion, six hundred fifty-five million, six hundred sixty-four thousand, two hundred eleven".