11566157606 has 16 divisors (see below), whose sum is σ = 17612381616. Its totient is φ = 5695405056.

The previous prime is 11566157597. The next prime is 11566157623. The reversal of 11566157606 is 60675166511.

11566157606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 777470 + ... + 792206.

It is an arithmetic number, because the mean of its divisors is an integer number (1100773851).

Almost surely, 2^11566157606 is an apocalyptic number.

11566157606 is a deficient number, since it is larger than the sum of its proper divisors (6046224010).

11566157606 is a wasteful number, since it uses less digits than its factorization.

11566157606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20663.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 11566157606 in words is "eleven billion, five hundred sixty-six million, one hundred fifty-seven thousand, six hundred six".