206684365066 has 16 divisors (see below), whose sum is σ = 323627001984. Its totient is φ = 98812059984.

The previous prime is 206684365051. The next prime is 206684365079. The reversal of 206684365066 is 660563486602.

It is a super-2 number, since 2×206684365066² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716070 + ... + 962353.

It is an arithmetic number, because the mean of its divisors is an integer number (20226687624).

Almost surely, 2^206684365066 is an apocalyptic number.

206684365066 is a deficient number, since it is larger than the sum of its proper divisors (116942636918).

206684365066 is a wasteful number, since it uses less digits than its factorization.

206684365066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681125.

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 206684365066 in words is "two hundred six billion, six hundred eighty-four million, three hundred sixty-five thousand, sixty-six".