11081782785656 has 64 divisors (see below), whose sum is σ = 23514070003200. Its totient is φ = 4852109433600.

The previous prime is 11081782785653. The next prime is 11081782785701. The reversal of 11081782785656 is 65658728718011.

It is a junction number, because it is equal to n+sod(n) for n = 11081782785592 and 11081782785601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081782785653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19154510 + ... + 19724573.

It is an arithmetic number, because the mean of its divisors is an integer number (367407343800).

Almost surely, 2^{11081782785656} is an apocalyptic number.

It is an amenable number.

11081782785656 is an abundant number, since it is smaller than the sum of its proper divisors (12432287217544).

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

11081782785656 is a wasteful number, since it uses less digits than its factorization.

11081782785656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38879220 (or 38879216 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 65.

The spelling of 11081782785656 in words is "eleven trillion, eighty-one billion, seven hundred eighty-two million, seven hundred eighty-five thousand, six hundred fifty-six".