206611361712 has 200 divisors, whose sum is σ = 683900084736. Its totient is φ = 58990425984.

The previous prime is 206611361711. The next prime is 206611361717. The reversal of 206611361712 is 217163116602.

206611361712 is a `hidden beast` number, since 2 + 0 + 6 + 611 + 36 + 1 + 7 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (206611361711) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14353783 + ... + 14368169.

Almost surely, 2^206611361712 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 206611361712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341950042368).

206611361712 is an abundant number, since it is smaller than the sum of its proper divisors (477288723024).

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

206611361712 is a wasteful number, since it uses less digits than its factorization.

206611361712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997 (or 15982 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 206611361712 in words is "two hundred six billion, six hundred eleven million, three hundred sixty-one thousand, seven hundred twelve".