11589660 has 108 divisors (see below), whose sum is σ = 36868104. Its totient is φ = 2946240.

The previous prime is 11589659. The next prime is 11589671. The reversal of 11589660 is 6698511.

11589660 is a `hidden beast` number, since 11 + 589 + 6 + 60 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 172947 + ... + 173013.

Almost surely, 2^11589660 is an apocalyptic number.

11589660 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 11589660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18434052).

11589660 is an abundant number, since it is smaller than the sum of its proper divisors (25278444).

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

11589660 is a wasteful number, since it uses less digits than its factorization.

11589660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 11589660 is about 3404.3589704965. The cubic root of 11589660 is about 226.3029586152.

The spelling of 11589660 in words is "eleven million, five hundred eighty-nine thousand, six hundred sixty".