11154122055 has 24 divisors (see below), whose sum is σ = 19511194560. Its totient is φ = 5894285760.

The previous prime is 11154122039. The next prime is 11154122069. The reversal of 11154122055 is 55022145111.

It is a happy number.

11154122055 is a `hidden beast` number, since 111 + 541 + 2 + 2 + 0 + 5 + 5 = 666.

11154122055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11154122055 - 2⁴ = 11154122039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1132111 + ... + 1141920.

It is an arithmetic number, because the mean of its divisors is an integer number (812966440).

Almost surely, 2^11154122055 is an apocalyptic number.

11154122055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11154122055 is a deficient number, since it is larger than the sum of its proper divisors (8357072505).

11154122055 is a wasteful number, since it uses less digits than its factorization.

11154122055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274151 (or 2274148 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 11154122055 its reverse (55022145111), we get a palindrome (66176267166).

The spelling of 11154122055 in words is "eleven billion, one hundred fifty-four million, one hundred twenty-two thousand, fifty-five".