12260040540 has 96 divisors (see below), whose sum is σ = 37819837440. Its totient is φ = 2942688000.

The previous prime is 12260040511. The next prime is 12260040547. The reversal of 12260040540 is 4504006221.

It is a self number, because there is not a number n which added to its sum of digits gives 12260040540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260040547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25300 + ... + 158619.

It is an arithmetic number, because the mean of its divisors is an integer number (393956640).

Almost surely, 2^12260040540 is an apocalyptic number.

12260040540 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 12260040540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18909918720).

12260040540 is an abundant number, since it is smaller than the sum of its proper divisors (25559796900).

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

12260040540 is a wasteful number, since it uses less digits than its factorization.

12260040540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184043 (or 184041 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12260040540 its reverse (4504006221), we get a palindrome (16764046761).

The spelling of 12260040540 in words is "twelve billion, two hundred sixty million, forty thousand, five hundred forty".