12645017112 has 128 divisors (see below), whose sum is σ = 41196556800. Its totient is φ = 3138766848.

The previous prime is 12645017111. The next prime is 12645017159. The reversal of 12645017112 is 21171054621.

12645017112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12645017112³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12645017112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645017111) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 133162 + ... + 207417.

It is an arithmetic number, because the mean of its divisors is an integer number (321848100).

Almost surely, 2^12645017112 is an apocalyptic number.

12645017112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12645017112 is an abundant number, since it is smaller than the sum of its proper divisors (28551539688).

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

12645017112 is a wasteful number, since it uses less digits than its factorization.

12645017112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340625 (or 340621 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 12645017112 in words is "twelve billion, six hundred forty-five million, seventeen thousand, one hundred twelve".