12111606516 has 48 divisors (see below), whose sum is σ = 29264135040. Its totient is φ = 3894092160.

The previous prime is 12111606511. The next prime is 12111606557. The reversal of 12111606516 is 61560611121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111606511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341910 + ... + 375666.

It is an arithmetic number, because the mean of its divisors is an integer number (609669480).

Almost surely, 2^12111606516 is an apocalyptic number.

It is an amenable number.

12111606516 is an abundant number, since it is smaller than the sum of its proper divisors (17152528524).

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

12111606516 is a wasteful number, since it uses less digits than its factorization.

12111606516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34824 (or 34822 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The spelling of 12111606516 in words is "twelve billion, one hundred eleven million, six hundred six thousand, five hundred sixteen".