11331855559 has 2 divisors, whose sum is σ = 11331855560. Its totient is φ = 11331855558.

The previous prime is 11331855553. The next prime is 11331855593. The reversal of 11331855559 is 95555813311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331855559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331855553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665927779 + 5665927780.

It is an arithmetic number, because the mean of its divisors is an integer number (5665927780).

Almost surely, 2^11331855559 is an apocalyptic number.

11331855559 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331855559 is an equidigital number, since it uses as much as digits as its factorization.

11331855559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 405000, while the sum is 46.

The spelling of 11331855559 in words is "eleven billion, three hundred thirty-one million, eight hundred fifty-five thousand, five hundred fifty-nine".