11013665256637 has 2 divisors, whose sum is σ = 11013665256638. Its totient is φ = 11013665256636.

The previous prime is 11013665256623. The next prime is 11013665256697. The reversal of 11013665256637 is 73665256631011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9916490710116 + 1097174546521 = 3149046^2 + 1047461^2 .

It is an emirp because it is prime and its reverse (73665256631011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11013665256637 - 2⁷ = 11013665256509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11013665256697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506832628318 + 5506832628319.

It is an arithmetic number, because the mean of its divisors is an integer number (5506832628319).

Almost surely, 2^{11013665256637} is an apocalyptic number.

It is an amenable number.

11013665256637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013665256637 is an equidigital number, since it uses as much as digits as its factorization.

11013665256637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 11013665256637 in words is "eleven trillion, thirteen billion, six hundred sixty-five million, two hundred fifty-six thousand, six hundred thirty-seven".