12158113845400 has 96 divisors (see below), whose sum is σ = 28535781003840. Its totient is φ = 4817122104960.

The previous prime is 12158113845391. The next prime is 12158113845431. The reversal of 12158113845400 is 454831185121.

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 23 ways as a sum of consecutive naturals, for example, 170372527 + ... + 170443873.

It is an arithmetic number, because the mean of its divisors is an integer number (297247718790).

Almost surely, 2^{12158113845400} is an apocalyptic number.

12158113845400 is a gapful number since it is divisible by the number (10) 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 12158113845400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14267890501920).

12158113845400 is an abundant number, since it is smaller than the sum of its proper divisors (16377667158440).

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

12158113845400 is a wasteful number, since it uses less digits than its factorization.

12158113845400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79433 (or 79424 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 12158113845400 in words is "twelve trillion, one hundred fifty-eight billion, one hundred thirteen million, eight hundred forty-five thousand, four hundred".