12126507560 has 96 divisors (see below), whose sum is σ = 29023077600. Its totient is φ = 4547162880.

The previous prime is 12126507521. The next prime is 12126507571. The reversal of 12126507560 is 6570562121.

It is a self number, because there is not a number n which added to its sum of digits gives 12126507560.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34746266 + ... + 34746614.

It is an arithmetic number, because the mean of its divisors is an integer number (302323725).

Almost surely, 2^12126507560 is an apocalyptic number.

12126507560 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 12126507560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14511538800).

12126507560 is an abundant number, since it is smaller than the sum of its proper divisors (16896570040).

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

12126507560 is a wasteful number, since it uses less digits than its factorization.

12126507560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 12126507560 in words is "twelve billion, one hundred twenty-six million, five hundred seven thousand, five hundred sixty".