805556055556 has 12 divisors (see below), whose sum is σ = 1611112111168. Its totient is φ = 345238309512.

The previous prime is 805556055539. The next prime is 805556055583. The reversal of 805556055556 is 655550655508.

805556055556 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 805556055497 and 805556055506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14384929536 + ... + 14384929591.

Almost surely, 2^805556055556 is an apocalyptic number.

It is an amenable number.

805556055556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

805556055556 is a wasteful number, since it uses less digits than its factorization.

805556055556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28769859138 (or 28769859136 counting only the distinct ones).

The product of its (nonzero) digits is 22500000, while the sum is 55.

The spelling of 805556055556 in words is "eight hundred five billion, five hundred fifty-six million, fifty-five thousand, five hundred fifty-six".