11105550505656 has 48 divisors (see below), whose sum is σ = 30077866728000. Its totient is φ = 3701809047552.

The previous prime is 11105550505579. The next prime is 11105550505661. The reversal of 11105550505656 is 65650505550111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6054520 + ... + 7672568.

It is an arithmetic number, because the mean of its divisors is an integer number (626622223500).

Almost surely, 2^{11105550505656} is an apocalyptic number.

It is an amenable number.

11105550505656 is an abundant number, since it is smaller than the sum of its proper divisors (18972316222344).

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

11105550505656 is a wasteful number, since it uses less digits than its factorization.

11105550505656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713388 (or 1713381 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 11105550505656 in words is "eleven trillion, one hundred five billion, five hundred fifty million, five hundred five thousand, six hundred fifty-six".