11999508480 has 960 divisors, whose sum is σ = 48804275520. Its totient is φ = 2802843648.

The previous prime is 11999508449. The next prime is 11999508509. The reversal of 11999508480 is 8480599911.

11999508480 is a `hidden beast` number, since 1 + 1 + 9 + 99 + 508 + 48 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 324311022 + ... + 324311058.

It is an arithmetic number, because the mean of its divisors is an integer number (50837787).

Almost surely, 2^11999508480 is an apocalyptic number.

11999508480 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 11999508480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24402137760).

11999508480 is an abundant number, since it is smaller than the sum of its proper divisors (36804767040).

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

11999508480 is a wasteful number, since it uses less digits than its factorization.

11999508480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 11999508480 in words is "eleven billion, nine hundred ninety-nine million, five hundred eight thousand, four hundred eighty".