12651161124 has 192 divisors, whose sum is σ = 35109752832. Its totient is φ = 3471552000.

The previous prime is 12651161113. The next prime is 12651161129. The reversal of 12651161124 is 42116115621.

It is a junction number, because it is equal to n+sod(n) for n = 12651161091 and 12651161100.

It is not an unprimeable number, because it can be changed into a prime (12651161129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64218994 + ... + 64219190.

It is an arithmetic number, because the mean of its divisors is an integer number (182863296).

Almost surely, 2^12651161124 is an apocalyptic number.

12651161124 is a gapful number since it is divisible by the number (14) 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 12651161124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17554876416).

12651161124 is an abundant number, since it is smaller than the sum of its proper divisors (22458591708).

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

12651161124 is a wasteful number, since it uses less digits than its factorization.

12651161124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

Adding to 12651161124 its reverse (42116115621), we get a palindrome (54767276745).

The spelling of 12651161124 in words is "twelve billion, six hundred fifty-one million, one hundred sixty-one thousand, one hundred twenty-four".