11995800240 has 160 divisors (see below), whose sum is σ = 37853577216. Its totient is φ = 3142056960.

The previous prime is 11995800227. The next prime is 11995800293. The reversal of 11995800240 is 4200859911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3137530 + ... + 3141350.

Almost surely, 2^11995800240 is an apocalyptic number.

11995800240 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 11995800240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18926788608).

11995800240 is an abundant number, since it is smaller than the sum of its proper divisors (25857776976).

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

11995800240 is a wasteful number, since it uses less digits than its factorization.

11995800240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 11995800240 in words is "eleven billion, nine hundred ninety-five million, eight hundred thousand, two hundred forty".