805185605856 has 96 divisors (see below), whose sum is σ = 2269462987008. Its totient is φ = 249049364480.

The previous prime is 805185605813. The next prime is 805185605857. The reversal of 805185605856 is 658506581508.

It is a happy number.

805185605856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 805185605796 and 805185605805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805185605857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3358590 + ... + 3590333.

It is an arithmetic number, because the mean of its divisors is an integer number (23640239448).

Almost surely, 2^805185605856 is an apocalyptic number.

It is an amenable number.

805185605856 is an abundant number, since it is smaller than the sum of its proper divisors (1464277381152).

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

805185605856 is a wasteful number, since it uses less digits than its factorization.

805185605856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949024 (or 6949016 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 57.

The spelling of 805185605856 in words is "eight hundred five billion, one hundred eighty-five million, six hundred five thousand, eight hundred fifty-six".