11109331855 has 8 divisors (see below), whose sum is σ = 13582730592. Its totient is φ = 8719777248.

The previous prime is 11109331847. The next prime is 11109331859. The reversal of 11109331855 is 55813390111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11109331855 - 2³ = 11109331847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109331859) 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 in 7 ways as a sum of consecutive naturals, for example, 20960739 + ... + 20961268.

It is an arithmetic number, because the mean of its divisors is an integer number (1697841324).

Almost surely, 2^11109331855 is an apocalyptic number.

11109331855 is a deficient number, since it is larger than the sum of its proper divisors (2473398737).

11109331855 is an equidigital number, since it uses as much as digits as its factorization.

11109331855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41922065.

The product of its (nonzero) digits is 16200, while the sum is 37.

The spelling of 11109331855 in words is "eleven billion, one hundred nine million, three hundred thirty-one thousand, eight hundred fifty-five".