228566364850 has 12 divisors (see below), whose sum is σ = 425133438714. Its totient is φ = 91426545920.

The previous prime is 228566364791. The next prime is 228566364853. The reversal of 228566364850 is 58463665822.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 207832956769 + 20733408081 = 455887^2 + 143991^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228566364791 and 228566364800.

It is not an unprimeable number, because it can be changed into a prime (228566364853) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2285663599 + ... + 2285663698.

Almost surely, 2^228566364850 is an apocalyptic number.

228566364850 is a deficient number, since it is larger than the sum of its proper divisors (196567073864).

228566364850 is a wasteful number, since it uses less digits than its factorization.

228566364850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571327309 (or 4571327304 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 55.

The spelling of 228566364850 in words is "two hundred twenty-eight billion, five hundred sixty-six million, three hundred sixty-four thousand, eight hundred fifty".