11161008 has 60 divisors (see below), whose sum is σ = 31482360. Its totient is φ = 3691008.

The previous prime is 11161001. The next prime is 11161009. The reversal of 11161008 is 80016111.

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 (11161001) 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 11 ways as a sum of consecutive naturals, for example, 25560 + ... + 25992.

It is an arithmetic number, because the mean of its divisors is an integer number (524706).

Almost surely, 2^11161008 is an apocalyptic number.

11161008 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 11161008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15741180).

11161008 is an abundant number, since it is smaller than the sum of its proper divisors (20321352).

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

11161008 is a wasteful number, since it uses less digits than its factorization.

11161008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 11161008 is about 3340.8094827452. The cubic root of 11161008 is about 223.4778441470.

Adding to 11161008 its reverse (80016111), we get a palindrome (91177119).

The spelling of 11161008 in words is "eleven million, one hundred sixty-one thousand, eight".