12445345000 has 160 divisors (see below), whose sum is σ = 32592067200. Its totient is φ = 4414400000.

The previous prime is 12445344997. The next prime is 12445345007. The reversal of 12445345000 is 54354421.

It is a super-2 number, since 2×12445345000² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12445345000.

It is not an unprimeable number, because it can be changed into a prime (12445345007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2252241 + ... + 2257759.

It is an arithmetic number, because the mean of its divisors is an integer number (203700420).

Almost surely, 2^12445345000 is an apocalyptic number.

12445345000 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 12445345000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16296033600).

12445345000 is an abundant number, since it is smaller than the sum of its proper divisors (20146722200).

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

12445345000 is a wasteful number, since it uses less digits than its factorization.

12445345000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597 (or 5578 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 12445345000 its reverse (54354421), we get a palindrome (12499699421).

The spelling of 12445345000 in words is "twelve billion, four hundred forty-five million, three hundred forty-five thousand".