11664213650 has 24 divisors (see below), whose sum is σ = 21700021824. Its totient is φ = 4664699600.

The previous prime is 11664213643. The next prime is 11664213733. The reversal of 11664213650 is 5631246611.

It is a self number, because there is not a number n which added to its sum of digits gives 11664213650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243155 + ... + 287145.

It is an arithmetic number, because the mean of its divisors is an integer number (904167576).

Almost surely, 2^11664213650 is an apocalyptic number.

11664213650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11664213650 is a deficient number, since it is larger than the sum of its proper divisors (10035808174).

11664213650 is a wasteful number, since it uses less digits than its factorization.

11664213650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49306 (or 49301 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 11664213650 in words is "eleven billion, six hundred sixty-four million, two hundred thirteen thousand, six hundred fifty".