11156704856 has 32 divisors (see below), whose sum is σ = 22901795280. Its totient is φ = 5053171200.

The previous prime is 11156704847. The next prime is 11156704859. The reversal of 11156704856 is 65840765111.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156704859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200861 + ... + 250316.

Almost surely, 2^11156704856 is an apocalyptic number.

It is an amenable number.

11156704856 is an abundant number, since it is smaller than the sum of its proper divisors (11745090424).

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

11156704856 is a wasteful number, since it uses less digits than its factorization.

11156704856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451475 (or 451471 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 11156704856 in words is "eleven billion, one hundred fifty-six million, seven hundred four thousand, eight hundred fifty-six".