12061556612 has 48 divisors (see below), whose sum is σ = 24440330880. Its totient is φ = 5101485312.

The previous prime is 12061556603. The next prime is 12061556623. The reversal of 12061556612 is 21665516021.

It is a super-2 number, since 2×12061556612² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398698 + ... + 1407294.

It is an arithmetic number, because the mean of its divisors is an integer number (509173560).

Almost surely, 2^12061556612 is an apocalyptic number.

It is an amenable number.

12061556612 is an abundant number, since it is smaller than the sum of its proper divisors (12378774268).

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

12061556612 is a wasteful number, since it uses less digits than its factorization.

12061556612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9260 (or 9258 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 12061556612 in words is "twelve billion, sixty-one million, five hundred fifty-six thousand, six hundred twelve".