11661008 has 10 divisors (see below), whose sum is σ = 22593234. Its totient is φ = 5830496.

The previous prime is 11660993. The next prime is 11661011. The reversal of 11661008 is 80016611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11235904 + 425104 = 3352^2 + 652^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 364391 + ... + 364422.

Almost surely, 2^11661008 is an apocalyptic number.

It is an amenable number.

11661008 is a deficient number, since it is larger than the sum of its proper divisors (10932226).

11661008 is an equidigital number, since it uses as much as digits as its factorization.

11661008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728821 (or 728815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 11661008 is about 3414.8218108710. The cubic root of 11661008 is about 226.7663959453.

Adding to 11661008 its reverse (80016611), we get a palindrome (91677619).

The spelling of 11661008 in words is "eleven million, six hundred sixty-one thousand, eight".