228685476168 has 24 divisors (see below), whose sum is σ = 619356498150. Its totient is φ = 76228492032.

The previous prime is 228685476143. The next prime is 228685476169. The reversal of 228685476168 is 861674586822.

228685476168 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 8 + 5 + 4 + 7 + 616 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 179808225444 + 48877250724 = 424038^2 + 221082^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (228685476169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588093513 + ... + 1588093656.

Almost surely, 2^228685476168 is an apocalyptic number.

It is an amenable number.

228685476168 is an abundant number, since it is smaller than the sum of its proper divisors (390671021982).

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

228685476168 is a wasteful number, since it uses less digits than its factorization.

228685476168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176187181 (or 3176187174 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 228685476168 in words is "two hundred twenty-eight billion, six hundred eighty-five million, four hundred seventy-six thousand, one hundred sixty-eight".