225831320806 has 32 divisors (see below), whose sum is σ = 422196848640. Its totient is φ = 88208973216.

The previous prime is 225831320747. The next prime is 225831320833. The reversal of 225831320806 is 608023138522.

225831320806 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7838986 + ... + 7867741.

It is an arithmetic number, because the mean of its divisors is an integer number (13193651520).

Almost surely, 2^225831320806 is an apocalyptic number.

225831320806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

225831320806 is a deficient number, since it is larger than the sum of its proper divisors (196365527834).

225831320806 is a wasteful number, since it uses less digits than its factorization.

225831320806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706828.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 225831320806 in words is "two hundred twenty-five billion, eight hundred thirty-one million, three hundred twenty thousand, eight hundred six".