12158754144 has 96 divisors (see below), whose sum is σ = 33850607616. Its totient is φ = 3808143360.

The previous prime is 12158754131. The next prime is 12158754197. The reversal of 12158754144 is 44145785121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 12158754096 and 12158754105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023889 + ... + 1035695.

It is an arithmetic number, because the mean of its divisors is an integer number (352610496).

Almost surely, 2^12158754144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12158754144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16925303808).

12158754144 is an abundant number, since it is smaller than the sum of its proper divisors (21691853472).

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

12158754144 is a wasteful number, since it uses less digits than its factorization.

12158754144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12468 (or 12460 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The spelling of 12158754144 in words is "twelve billion, one hundred fifty-eight million, seven hundred fifty-four thousand, one hundred forty-four".