11320650666 has 64 divisors (see below), whose sum is σ = 27179792640. Its totient is φ = 3472009920.

The previous prime is 11320650631. The next prime is 11320650667. The reversal of 11320650666 is 66605602311.

11320650666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11320650666.

It is not an unprimeable number, because it can be changed into a prime (11320650667) 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 31 ways as a sum of consecutive naturals, for example, 192396 + ... + 244248.

It is an arithmetic number, because the mean of its divisors is an integer number (424684260).

Almost surely, 2^11320650666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11320650666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13589896320).

11320650666 is an abundant number, since it is smaller than the sum of its proper divisors (15859141974).

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

11320650666 is a wasteful number, since it uses less digits than its factorization.

11320650666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52188 (or 52182 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 11320650666 in words is "eleven billion, three hundred twenty million, six hundred fifty thousand, six hundred sixty-six".