12516364212 has 96 divisors (see below), whose sum is σ = 32409129984. Its totient is φ = 3727814400.

The previous prime is 12516364199. The next prime is 12516364261. The reversal of 12516364212 is 21246361521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2956137 + ... + 2960367.

It is an arithmetic number, because the mean of its divisors is an integer number (337595104).

Almost surely, 2^12516364212 is an apocalyptic number.

12516364212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12516364212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16204564992).

12516364212 is an abundant number, since it is smaller than the sum of its proper divisors (19892765772).

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

12516364212 is a wasteful number, since it uses less digits than its factorization.

12516364212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629 (or 4627 counting only the distinct ones).

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

The spelling of 12516364212 in words is "twelve billion, five hundred sixteen million, three hundred sixty-four thousand, two hundred twelve".