11011100080 has 20 divisors (see below), whose sum is σ = 25600807872. Its totient is φ = 4404440000.

The previous prime is 11011100071. The next prime is 11011100081. The reversal of 11011100080 is 8000111011.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 11011100080.

It is not an unprimeable number, because it can be changed into a prime (11011100081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68819296 + ... + 68819455.

Almost surely, 2^11011100080 is an apocalyptic number.

11011100080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011100080 is an abundant number, since it is smaller than the sum of its proper divisors (14589707792).

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

11011100080 is a wasteful number, since it uses less digits than its factorization.

11011100080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137638764 (or 137638758 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011100080 its reverse (8000111011), we get a palindrome (19011211091).

The spelling of 11011100080 in words is "eleven billion, eleven million, one hundred thousand, eighty".