11810255641 has 2 divisors, whose sum is σ = 11810255642. Its totient is φ = 11810255640.

The previous prime is 11810255627. The next prime is 11810255669. The reversal of 11810255641 is 14655201811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11810255625 + 16 = 108675^2 + 4^2 .

It is an emirp because it is prime and its reverse (14655201811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11810255641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11810255597 and 11810255606.

It is not a weakly prime, because it can be changed into another prime (11810255741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905127820 + 5905127821.

It is an arithmetic number, because the mean of its divisors is an integer number (5905127821).

Almost surely, 2^11810255641 is an apocalyptic number.

It is an amenable number.

11810255641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11810255641 is an equidigital number, since it uses as much as digits as its factorization.

11810255641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 11810255641 in words is "eleven billion, eight hundred ten million, two hundred fifty-five thousand, six hundred forty-one".