4206640266 has 12 divisors (see below), whose sum is σ = 9114387282. Its totient is φ = 1402213416.

The previous prime is 4206640247. The next prime is 4206640271. The reversal of 4206640266 is 6620466024.

4206640266 is a `hidden beast` number, since 4 + 2 + 0 + 6 + 640 + 2 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4204874025 + 1766241 = 64845^2 + 1329^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4206640266.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116851101 + ... + 116851136.

Almost surely, 2^4206640266 is an apocalyptic number.

4206640266 is an abundant number, since it is smaller than the sum of its proper divisors (4907747016).

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

4206640266 is a wasteful number, since it uses less digits than its factorization.

4206640266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233702245 (or 233702242 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4206640266 is about 64858.6175153310. The cubic root of 4206640266 is about 1614.2784836606.

The spelling of 4206640266 in words is "four billion, two hundred six million, six hundred forty thousand, two hundred sixty-six".