11775660 has 96 divisors (see below), whose sum is σ = 36728832. Its totient is φ = 2799360.

The previous prime is 11775641. The next prime is 11775677. The reversal of 11775660 is 6657711.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23937 + ... + 24423.

It is an arithmetic number, because the mean of its divisors is an integer number (382592).

Almost surely, 2^11775660 is an apocalyptic number.

11775660 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 11775660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18364416).

11775660 is an abundant number, since it is smaller than the sum of its proper divisors (24953172).

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

11775660 is a wasteful number, since it uses less digits than its factorization.

11775660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 11775660 is about 3431.5681546488. The cubic root of 11775660 is about 227.5071687956.

The spelling of 11775660 in words is "eleven million, seven hundred seventy-five thousand, six hundred sixty".