11659560 has 128 divisors (see below), whose sum is σ = 39000960. Its totient is φ = 2787840.

The previous prime is 11659511. The next prime is 11659561. The reversal of 11659560 is 6595611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (11659561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159684 + ... + 159756.

It is an arithmetic number, because the mean of its divisors is an integer number (304695).

Almost surely, 2^11659560 is an apocalyptic number.

11659560 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 11659560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19500480).

11659560 is an abundant number, since it is smaller than the sum of its proper divisors (27341400).

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

11659560 is a wasteful number, since it uses less digits than its factorization.

11659560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 11659560 is about 3414.6097873696. The cubic root of 11659560 is about 226.7570093544.

It can be divided in two parts, 1 and 1659560, that added together give a palindrome (1659561).

The spelling of 11659560 in words is "eleven million, six hundred fifty-nine thousand, five hundred sixty".