206227646568 has 320 divisors, whose sum is σ = 625591296000. Its totient is φ = 63284664960.

The previous prime is 206227646519. The next prime is 206227646627. The reversal of 206227646568 is 865646722602.

It is a happy number.

206227646568 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 2 + 76 + 4 + 6 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 91941655 + ... + 91943897.

It is an arithmetic number, because the mean of its divisors is an integer number (1954972800).

Almost surely, 2^206227646568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206227646568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312795648000).

206227646568 is an abundant number, since it is smaller than the sum of its proper divisors (419363649432).

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

206227646568 is a wasteful number, since it uses less digits than its factorization.

206227646568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2501 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 206227646568 in words is "two hundred six billion, two hundred twenty-seven million, six hundred forty-six thousand, five hundred sixty-eight".