11365560 has 96 divisors (see below), whose sum is σ = 37374480. Its totient is φ = 2995200.

The previous prime is 11365559. The next prime is 11365573. The reversal of 11365560 is 6556311.

It is a happy number.

11365560 is a `hidden beast` number, since 1 + 1 + 3 + 655 + 6 + 0 = 666.

It is a super-2 number, since 2×11365560² = 258351908227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47040 + ... + 47280.

Almost surely, 2^11365560 is an apocalyptic number.

11365560 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 11365560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18687240).

11365560 is an abundant number, since it is smaller than the sum of its proper divisors (26008920).

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

11365560 is a wasteful number, since it uses less digits than its factorization.

11365560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 11365560 is about 3371.2846216242. The cubic root of 11365560 is about 224.8348417604.

Subtracting from 11365560 its reverse (6556311), we obtain a square (4809249 = 2193²).

The spelling of 11365560 in words is "eleven million, three hundred sixty-five thousand, five hundred sixty".