11133992808 has 128 divisors (see below), whose sum is σ = 32183308800. Its totient is φ = 3563659008.

The previous prime is 11133992803. The next prime is 11133992839. The reversal of 11133992808 is 80829933111.

It is not an unprimeable number, because it can be changed into a prime (11133992803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527710 + ... + 548402.

It is an arithmetic number, because the mean of its divisors is an integer number (251432100).

Almost surely, 2^11133992808 is an apocalyptic number.

11133992808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11133992808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16091654400).

11133992808 is an abundant number, since it is smaller than the sum of its proper divisors (21049315992).

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

11133992808 is a wasteful number, since it uses less digits than its factorization.

11133992808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20808 (or 20798 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 11133992808 in words is "eleven billion, one hundred thirty-three million, nine hundred ninety-two thousand, eight hundred eight".