11983339920 has 80 divisors (see below), whose sum is σ = 37179495360. Its totient is φ = 3192878592.

The previous prime is 11983339877. The next prime is 11983339937. The reversal of 11983339920 is 2993338911.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11983339920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274647 + ... + 315273.

It is an arithmetic number, because the mean of its divisors is an integer number (464743692).

Almost surely, 2^11983339920 is an apocalyptic number.

11983339920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11983339920 is an abundant number, since it is smaller than the sum of its proper divisors (25196155440).

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

11983339920 is a wasteful number, since it uses less digits than its factorization.

11983339920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41872 (or 41866 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 11983339920 in words is "eleven billion, nine hundred eighty-three million, three hundred thirty-nine thousand, nine hundred twenty".