11155330055 has 16 divisors (see below), whose sum is σ = 13511172384. Its totient is φ = 8841154560.

The previous prime is 11155330033. The next prime is 11155330097. The reversal of 11155330055 is 55003355111.

It is not a de Polignac number, because 11155330055 - 2¹⁴ = 11155313671 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1901687 + ... + 1907543.

It is an arithmetic number, because the mean of its divisors is an integer number (844448274).

Almost surely, 2^11155330055 is an apocalyptic number.

11155330055 is a deficient number, since it is larger than the sum of its proper divisors (2355842329).

11155330055 is a wasteful number, since it uses less digits than its factorization.

11155330055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9346.

The product of its (nonzero) digits is 5625, while the sum is 29.

Adding to 11155330055 its reverse (55003355111), we get a palindrome (66158685166).

The spelling of 11155330055 in words is "eleven billion, one hundred fifty-five million, three hundred thirty thousand, fifty-five".