11100511116 has 36 divisors (see below), whose sum is σ = 28374910200. Its totient is φ = 3658594368.

The previous prime is 11100511111. The next prime is 11100511139. The reversal of 11100511116 is 61111500111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11100511111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1729086 + ... + 1735493.

It is an arithmetic number, because the mean of its divisors is an integer number (788191950).

Almost surely, 2^11100511116 is an apocalyptic number.

It is an amenable number.

11100511116 is an abundant number, since it is smaller than the sum of its proper divisors (17274399084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11100511116 is a wasteful number, since it uses less digits than its factorization.

11100511116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464678 (or 3464673 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 18.

The spelling of 11100511116 in words is "eleven billion, one hundred million, five hundred eleven thousand, one hundred sixteen".