11662660 has 24 divisors (see below), whose sum is σ = 24597720. Its totient is φ = 4644864.

The previous prime is 11662657. The next prime is 11662661. The reversal of 11662660 is 6626611.

11662660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1473796 + 10188864 = 1214^2 + 3192^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4006 + ... + 6274.

It is an arithmetic number, because the mean of its divisors is an integer number (1024905).

Almost surely, 2^11662660 is an apocalyptic number.

11662660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11662660 is an abundant number, since it is smaller than the sum of its proper divisors (12935060).

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

11662660 is a wasteful number, since it uses less digits than its factorization.

11662660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 11662660 is about 3415.0636890108. The cubic root of 11662660 is about 226.7771040075. Note that the first 3 decimals are identical.

It can be divided in two parts, 1 and 1662660, that added together give a palindrome (1662661).

The spelling of 11662660 in words is "eleven million, six hundred sixty-two thousand, six hundred sixty".