11883961656 has 384 divisors, whose sum is σ = 41287034880. Its totient is φ = 3124832256.

The previous prime is 11883961619. The next prime is 11883961681. The reversal of 11883961656 is 65616938811.

11883961656 is a `hidden beast` number, since 1 + 18 + 8 + 3 + 9 + 616 + 5 + 6 = 666.

11883961656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10872246 + ... + 10873338.

It is an arithmetic number, because the mean of its divisors is an integer number (107518320).

Almost surely, 2^11883961656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11883961656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20643517440).

11883961656 is an abundant number, since it is smaller than the sum of its proper divisors (29403073224).

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

11883961656 is a wasteful number, since it uses less digits than its factorization.

11883961656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1169 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 11883961656 in words is "eleven billion, eight hundred eighty-three million, nine hundred sixty-one thousand, six hundred fifty-six".