11663660 has 24 divisors (see below), whose sum is σ = 24642576. Its totient is φ = 4637120.

The previous prime is 11663653. The next prime is 11663669. The reversal of 11663660 is 6636611.

It is not an unprimeable number, because it can be changed into a prime (11663669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (1026774).

Almost surely, 2^11663660 is an apocalyptic number.

11663660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11663660 is an abundant number, since it is smaller than the sum of its proper divisors (12978916).

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

11663660 is a wasteful number, since it uses less digits than its factorization.

11663660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 11663660 is about 3415.2100960263. The cubic root of 11663660 is about 226.7835853940.

It can be divided in two parts, 1 and 1663660, that added together give a palindrome (1663661).

The spelling of 11663660 in words is "eleven million, six hundred sixty-three thousand, six hundred sixty".