12542105152 has 112 divisors (see below), whose sum is σ = 25955500032. Its totient is φ = 6009131520.

The previous prime is 12542105117. The next prime is 12542105171. The reversal of 12542105152 is 25150124521.

It is a self number, because there is not a number n which added to its sum of digits gives 12542105152.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56242513 + ... + 56242735.

It is an arithmetic number, because the mean of its divisors is an integer number (231745536).

Almost surely, 2^12542105152 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 12542105152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12977750016).

12542105152 is an abundant number, since it is smaller than the sum of its proper divisors (13413394880).

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

12542105152 is a wasteful number, since it uses less digits than its factorization.

12542105152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 12542105152 its reverse (25150124521), we get a palindrome (37692229673).

The spelling of 12542105152 in words is "twelve billion, five hundred forty-two million, one hundred five thousand, one hundred fifty-two".