228538366652 has 24 divisors (see below), whose sum is σ = 418202265600. Its totient is φ = 109072751216.

The previous prime is 228538366649. The next prime is 228538366697. The reversal of 228538366652 is 256663835822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548952 + ... + 2637087.

It is an arithmetic number, because the mean of its divisors is an integer number (17425094400).

Almost surely, 2^228538366652 is an apocalyptic number.

It is an amenable number.

228538366652 is a deficient number, since it is larger than the sum of its proper divisors (189663898948).

228538366652 is a wasteful number, since it uses less digits than its factorization.

228538366652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186545 (or 5186543 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 56.

The spelling of 228538366652 in words is "two hundred twenty-eight billion, five hundred thirty-eight million, three hundred sixty-six thousand, six hundred fifty-two".