225660066522 has 16 divisors (see below), whose sum is σ = 492349236192. Its totient is φ = 68381838320.

The previous prime is 225660066509. The next prime is 225660066539.

225660066522 is nontrivially palindromic in base 10.

225660066522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1709545893 + ... + 1709546024.

It is an arithmetic number, because the mean of its divisors is an integer number (30771827262).

Almost surely, 2^225660066522 is an apocalyptic number.

225660066522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225660066522 is an abundant number, since it is smaller than the sum of its proper divisors (266689169670).

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

225660066522 is a wasteful number, since it uses less digits than its factorization.

225660066522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419091933.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 225660066522 in words is "two hundred twenty-five billion, six hundred sixty million, sixty-six thousand, five hundred twenty-two".