12516243612 has 24 divisors (see below), whose sum is σ = 29219936256. Its totient is φ = 4169885808.

The previous prime is 12516243611. The next prime is 12516243631. The reversal of 12516243612 is 21634261521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516243611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250588 + ... + 296355.

It is an arithmetic number, because the mean of its divisors is an integer number (1217497344).

Almost surely, 2^12516243612 is an apocalyptic number.

12516243612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12516243612 is an abundant number, since it is smaller than the sum of its proper divisors (16703692644).

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

12516243612 is a wasteful number, since it uses less digits than its factorization.

12516243612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548857 (or 548855 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The spelling of 12516243612 in words is "twelve billion, five hundred sixteen million, two hundred forty-three thousand, six hundred twelve".