11600221806 has 12 divisors (see below), whose sum is σ = 25133813952. Its totient is φ = 3866740596.

The previous prime is 11600221747. The next prime is 11600221849. The reversal of 11600221806 is 60812200611.

It is a self number, because there is not a number n which added to its sum of digits gives 11600221806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322228366 + ... + 322228401.

It is an arithmetic number, because the mean of its divisors is an integer number (2094484496).

Almost surely, 2^11600221806 is an apocalyptic number.

11600221806 is an abundant number, since it is smaller than the sum of its proper divisors (13533592146).

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

11600221806 is a wasteful number, since it uses less digits than its factorization.

11600221806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644456775 (or 644456772 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 11600221806 in words is "eleven billion, six hundred million, two hundred twenty-one thousand, eight hundred six".