18255263111 has 2 divisors, whose sum is σ = 18255263112. Its totient is φ = 18255263110.

The previous prime is 18255263087. The next prime is 18255263171. The reversal of 18255263111 is 11136255281.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18255263111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18255263171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9127631555 + 9127631556.

It is an arithmetic number, because the mean of its divisors is an integer number (9127631556).

Almost surely, 2^18255263111 is an apocalyptic number.

18255263111 is a deficient number, since it is larger than the sum of its proper divisors (1).

18255263111 is an equidigital number, since it uses as much as digits as its factorization.

18255263111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 35.

The spelling of 18255263111 in words is "eighteen billion, two hundred fifty-five million, two hundred sixty-three thousand, one hundred eleven".