11998468720 has 160 divisors (see below), whose sum is σ = 32348929536. Its totient is φ = 4053888000.

The previous prime is 11998468711. The next prime is 11998468721. The reversal of 11998468720 is 2786489911.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998468721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17363575 + ... + 17364265.

Almost surely, 2^11998468720 is an apocalyptic number.

11998468720 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 11998468720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174464768).

11998468720 is an abundant number, since it is smaller than the sum of its proper divisors (20350460816).

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

11998468720 is a wasteful number, since it uses less digits than its factorization.

11998468720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 11998468720 in words is "eleven billion, nine hundred ninety-eight million, four hundred sixty-eight thousand, seven hundred twenty".