11561060 has 72 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 3864000.

The previous prime is 11561027. The next prime is 11561087. The reversal of 11561060 is 6016511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45935 + ... + 46185.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

Almost surely, 2^11561060 is an apocalyptic number.

11561060 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 11561060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14478912).

11561060 is an abundant number, since it is smaller than the sum of its proper divisors (17396764).

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

11561060 is a wasteful number, since it uses less digits than its factorization.

11561060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 11561060 is about 3400.1558787797. The cubic root of 11561060 is about 226.1166547365.

Adding to 11561060 its reverse (6016511), we get a palindrome (17577571).

The spelling of 11561060 in words is "eleven million, five hundred sixty-one thousand, sixty".