11990644066 has 8 divisors (see below), whose sum is σ = 17995794624. Its totient is φ = 5992045860.

The previous prime is 11990644063. The next prime is 11990644093. The reversal of 11990644066 is 66044609911.

11990644066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11990644063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633510 + ... + 1640833.

It is an arithmetic number, because the mean of its divisors is an integer number (2249474328).

Almost surely, 2^11990644066 is an apocalyptic number.

11990644066 is a deficient number, since it is larger than the sum of its proper divisors (6005150558).

11990644066 is a wasteful number, since it uses less digits than its factorization.

11990644066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276176.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 11990644066 in words is "eleven billion, nine hundred ninety million, six hundred forty-four thousand, sixty-six".