55011111001011 has 20 divisors (see below), whose sum is σ = 89647736447544. Its totient is φ = 33340067272800.

The previous prime is 55011111001003. The next prime is 55011111001039. The reversal of 55011111001011 is 11010011111055.

55011111001011 is a `hidden beast` number, since 550 + 1 + 1 + 1 + 1 + 10 + 0 + 101 + 1 = 666.

55011111001011 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 55011111001011 - 2³ = 55011111001003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55011111001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30870431770 + ... + 30870433551.

Almost surely, 2^{55011111001011} is an apocalyptic number.

55011111001011 is a deficient number, since it is larger than the sum of its proper divisors (34636625446533).

55011111001011 is a wasteful number, since it uses less digits than its factorization.

55011111001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61740865344 (or 61740865335 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 18.

Adding to 55011111001011 its reverse (11010011111055), we get a palindrome (66021122112066).

The spelling of 55011111001011 in words is "fifty-five trillion, eleven billion, one hundred eleven million, one thousand, eleven".