11163816 has 48 divisors (see below), whose sum is σ = 30888000. Its totient is φ = 3640992.

The previous prime is 11163791. The next prime is 11163821. The reversal of 11163816 is 61836111.

11163816 is a `hidden beast` number, since 1 + 11 + 638 + 16 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11163816.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1735 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (643500).

Almost surely, 2^11163816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11163816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15444000).

11163816 is an abundant number, since it is smaller than the sum of its proper divisors (19724184).

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

11163816 is a wasteful number, since it uses less digits than its factorization.

11163816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358 (or 3351 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11163816 is about 3341.2297137431. The cubic root of 11163816 is about 223.4965841857.

Adding to 11163816 its reverse (61836111), we get a palindrome (72999927).

The spelling of 11163816 in words is "eleven million, one hundred sixty-three thousand, eight hundred sixteen".