11989227606 has 16 divisors (see below), whose sum is σ = 23979547584. Its totient is φ = 3996227144.

The previous prime is 11989227553. The next prime is 11989227619. The reversal of 11989227606 is 60672298911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194641 + ... + 248723.

It is an arithmetic number, because the mean of its divisors is an integer number (1498721724).

Almost surely, 2^11989227606 is an apocalyptic number.

11989227606 is an abundant number, since it is smaller than the sum of its proper divisors (11990319978).

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

11989227606 is a wasteful number, since it uses less digits than its factorization.

11989227606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91035.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 11989227606 in words is "eleven billion, nine hundred eighty-nine million, two hundred twenty-seven thousand, six hundred six".