12156312504 has 64 divisors (see below), whose sum is σ = 34747027200. Its totient is φ = 3471761664.

The previous prime is 12156312491. The next prime is 12156312533. The reversal of 12156312504 is 40521365121.

12156312504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 419244 + ... + 447300.

It is an arithmetic number, because the mean of its divisors is an integer number (542922300).

Almost surely, 2^12156312504 is an apocalyptic number.

12156312504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12156312504 is an abundant number, since it is smaller than the sum of its proper divisors (22590714696).

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

12156312504 is a wasteful number, since it uses less digits than its factorization.

12156312504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30652 (or 30648 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 12156312504 its reverse (40521365121), we get a palindrome (52677677625).

The spelling of 12156312504 in words is "twelve billion, one hundred fifty-six million, three hundred twelve thousand, five hundred four".