12156620144 has 20 divisors (see below), whose sum is σ = 23559715296. Its totient is φ = 6076693632.

The previous prime is 12156620129. The next prime is 12156620153. The reversal of 12156620144 is 44102665121.

12156620144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12156620144.

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 3 ways as a sum of consecutive naturals, for example, 37784 + ... + 160439.

Almost surely, 2^12156620144 is an apocalyptic number.

It is an amenable number.

12156620144 is a deficient number, since it is larger than the sum of its proper divisors (11403095152).

12156620144 is a wasteful number, since it uses less digits than its factorization.

12156620144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202064 (or 202058 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 12156620144 in words is "twelve billion, one hundred fifty-six million, six hundred twenty thousand, one hundred forty-four".