11566665106 has 8 divisors (see below), whose sum is σ = 17357637564. Its totient is φ = 5780785920.

The previous prime is 11566665067. The next prime is 11566665107. The reversal of 11566665106 is 60156666511.

11566665106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9108984481 + 2457680625 = 95441^2 + 49575^2 .

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 (11566665107) 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, 1267635 + ... + 1276726.

Almost surely, 2^11566665106 is an apocalyptic number.

11566665106 is a deficient number, since it is larger than the sum of its proper divisors (5790972458).

11566665106 is a wasteful number, since it uses less digits than its factorization.

11566665106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546636.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 11566665106 in words is "eleven billion, five hundred sixty-six million, six hundred sixty-five thousand, one hundred six".