11659880 has 32 divisors (see below), whose sum is σ = 26848800. Its totient is φ = 4554816.

The previous prime is 11659871. The next prime is 11659891. The reversal of 11659880 is 8895611.

11659880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11659880² = 271905603228800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (839025).

Almost surely, 2^11659880 is an apocalyptic number.

11659880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11659880 is an abundant number, since it is smaller than the sum of its proper divisors (15188920).

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

11659880 is a wasteful number, since it uses less digits than its factorization.

11659880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833 (or 6829 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 11659880 is about 3414.6566445252. The cubic root of 11659880 is about 226.7590838060.

The spelling of 11659880 in words is "eleven million, six hundred fifty-nine thousand, eight hundred eighty".