11966935680 has 1024 divisors, whose sum is σ = 52641792000. Its totient is φ = 2508226560.

The previous prime is 11966935679. The next prime is 11966935693. The reversal of 11966935680 is 8653966911.

11966935680 is a `hidden beast` number, since 1 + 19 + 6 + 69 + 3 + 568 + 0 = 666.

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

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 127 ways as a sum of consecutive naturals, for example, 94227777 + ... + 94227903.

It is an arithmetic number, because the mean of its divisors is an integer number (51408000).

Almost surely, 2^11966935680 is an apocalyptic number.

11966935680 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 11966935680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26320896000).

11966935680 is an abundant number, since it is smaller than the sum of its proper divisors (40674856320).

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

11966935680 is a wasteful number, since it uses less digits than its factorization.

11966935680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 11966935680 in words is "eleven billion, nine hundred sixty-six million, nine hundred thirty-five thousand, six hundred eighty".