11996237440 has 256 divisors, whose sum is σ = 32884963200. Its totient is φ = 4144250880.

The previous prime is 11996237417. The next prime is 11996237497. The reversal of 11996237440 is 4473269911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13678282 + ... + 13679158.

Almost surely, 2^11996237440 is an apocalyptic number.

11996237440 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 11996237440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16442481600).

11996237440 is an abundant number, since it is smaller than the sum of its proper divisors (20888725760).

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

11996237440 is a wasteful number, since it uses less digits than its factorization.

11996237440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 11996237440 in words is "eleven billion, nine hundred ninety-six million, two hundred thirty-seven thousand, four hundred forty".