11180680 has 64 divisors (see below), whose sum is σ = 29197440. Its totient is φ = 3773952.

The previous prime is 11180669. The next prime is 11180749. The reversal of 11180680 is 8608111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20167 + ... + 20713.

It is an arithmetic number, because the mean of its divisors is an integer number (456210).

Almost surely, 2^11180680 is an apocalyptic number.

11180680 is a gapful number since it is divisible by the number (10) 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 11180680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14598720).

11180680 is an abundant number, since it is smaller than the sum of its proper divisors (18016760).

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

11180680 is a wasteful number, since it uses less digits than its factorization.

11180680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 11180680 is about 3343.7523831767. The cubic root of 11180680 is about 223.6090651437.

Adding to 11180680 its reverse (8608111), we get a palindrome (19788791).

The spelling of 11180680 in words is "eleven million, one hundred eighty thousand, six hundred eighty".