11155204660 has 24 divisors (see below), whose sum is σ = 23924355840. Its totient is φ = 4367143584.

The previous prime is 11155204657. The next prime is 11155204673. The reversal of 11155204660 is 6640255111.

11155204660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 5932680 + ... + 5934559.

It is an arithmetic number, because the mean of its divisors is an integer number (996848160).

Almost surely, 2^11155204660 is an apocalyptic number.

11155204660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11155204660 is an abundant number, since it is smaller than the sum of its proper divisors (12769151180).

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

11155204660 is a wasteful number, since it uses less digits than its factorization.

11155204660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11867295 (or 11867293 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 11155204660 its reverse (6640255111), we get a palindrome (17795459771).

The spelling of 11155204660 in words is "eleven billion, one hundred fifty-five million, two hundred four thousand, six hundred sixty".