8366228658 has 18 divisors (see below), whose sum is σ = 18127669599. Its totient is φ = 2788613532.

The previous prime is 8366228657. The next prime is 8366228669. The reversal of 8366228658 is 8568226638.

8366228658 is a `hidden beast` number, since 8 + 3 + 6 + 622 + 8 + 6 + 5 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4183114329 + 4183114329 = 64677^2 + 64677^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=64677.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8366228657) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 377283 + ... + 398841.

Almost surely, 2^8366228658 is an apocalyptic number.

8366228658 is an abundant number, since it is smaller than the sum of its proper divisors (9761440941).

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

8366228658 is an frugal number, since it uses more digits than its factorization.

8366228658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43126 (or 21564 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 8366228658 is about 91467.0905736047. The cubic root of 8366228658 is about 2030.0648428251.

The spelling of 8366228658 in words is "eight billion, three hundred sixty-six million, two hundred twenty-eight thousand, six hundred fifty-eight".