11155455111 has 16 divisors (see below), whose sum is σ = 15292988928. Its totient is φ = 7228785600.

The previous prime is 11155455109. The next prime is 11155455133.

11155455111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11155455111 - 2¹ = 11155455109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155455611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134001 + ... + 200666.

It is an arithmetic number, because the mean of its divisors is an integer number (955811808).

Almost surely, 2^11155455111 is an apocalyptic number.

11155455111 is a deficient number, since it is larger than the sum of its proper divisors (4137533817).

11155455111 is a wasteful number, since it uses less digits than its factorization.

11155455111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334982.

The product of its digits is 2500, while the sum is 30.

The spelling of 11155455111 in words is "eleven billion, one hundred fifty-five million, four hundred fifty-five thousand, one hundred eleven".