12999945180852 has 216 divisors, whose sum is σ = 38424588646080. Its totient is φ = 3630209011200.

The previous prime is 12999945180851. The next prime is 12999945180913. The reversal of 12999945180852 is 25808154999921.

12999945180852 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 99 + 451 + 8 + 0 + 85 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999945180851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 411361852 + ... + 411393452.

Almost surely, 2^{12999945180852} is an apocalyptic number.

12999945180852 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 12999945180852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19212294323040).

12999945180852 is an abundant number, since it is smaller than the sum of its proper divisors (25424643465228).

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

12999945180852 is a wasteful number, since it uses less digits than its factorization.

12999945180852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32451 (or 32399 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 72.

It can be divided in two parts, 1299994 and 5180852, that added together give a palindrome (6480846).

The spelling of 12999945180852 in words is "twelve trillion, nine hundred ninety-nine billion, nine hundred forty-five million, one hundred eighty thousand, eight hundred fifty-two".