12243155534500 has 96 divisors (see below), whose sum is σ = 29194178307840. Its totient is φ = 4448347200000.

The previous prime is 12243155534497. The next prime is 12243155534549. The reversal of 12243155534500 is 543555134221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5678761 + ... + 7532239.

It is an arithmetic number, because the mean of its divisors is an integer number (304106024040).

Almost surely, 2^{12243155534500} is an apocalyptic number.

12243155534500 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 12243155534500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14597089153920).

12243155534500 is an abundant number, since it is smaller than the sum of its proper divisors (16951022773340).

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

12243155534500 is a wasteful number, since it uses less digits than its factorization.

12243155534500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854710 (or 1854698 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 12243155534500 in words is "twelve trillion, two hundred forty-three billion, one hundred fifty-five million, five hundred thirty-four thousand, five hundred".