11116720 has 20 divisors (see below), whose sum is σ = 25846560. Its totient is φ = 4446656.

The previous prime is 11116711. The next prime is 11116727. The reversal of 11116720 is 2761111.

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

It is not an unprimeable number, because it can be changed into a prime (11116727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69400 + ... + 69559.

It is an arithmetic number, because the mean of its divisors is an integer number (1292328).

Almost surely, 2^11116720 is an apocalyptic number.

11116720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11116720 is an abundant number, since it is smaller than the sum of its proper divisors (14729840).

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

11116720 is a wasteful number, since it uses less digits than its factorization.

11116720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138972 (or 138966 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 11116720 is about 3334.1745605172. The cubic root of 11116720 is about 223.1818581281.

Adding to 11116720 its reverse (2761111), we get a palindrome (13877831).

The spelling of 11116720 in words is "eleven million, one hundred sixteen thousand, seven hundred twenty".