11105987256 has 192 divisors, whose sum is σ = 39197995200. Its totient is φ = 2756726784.

The previous prime is 11105987251. The next prime is 11105987267. The reversal of 11105987256 is 65278950111.

11105987256 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 598 + 7 + 2 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105987251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61530 + ... + 161238.

It is an arithmetic number, because the mean of its divisors is an integer number (204156225).

Almost surely, 2^11105987256 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 11105987256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19598997600).

11105987256 is an abundant number, since it is smaller than the sum of its proper divisors (28092007944).

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

11105987256 is a wasteful number, since it uses less digits than its factorization.

11105987256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99758 (or 99751 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 11105987256 in words is "eleven billion, one hundred five million, nine hundred eighty-seven thousand, two hundred fifty-six".