206688327851196 has 96 divisors (see below), whose sum is σ = 539080460654400. Its totient is φ = 68483072609280.

The previous prime is 206688327851179. The next prime is 206688327851233. The reversal of 206688327851196 is 691158723886602.

206688327851196 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 8 + 8 + 32 + 78 + 511 + 9 + 6 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4086406 + ... + 20738258.

It is an arithmetic number, because the mean of its divisors is an integer number (5615421465150).

Almost surely, 2^{206688327851196} 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 206688327851196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269540230327200).

206688327851196 is an abundant number, since it is smaller than the sum of its proper divisors (332392132803204).

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

206688327851196 is a wasteful number, since it uses less digits than its factorization.

206688327851196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652556 (or 16652548 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 72.

The spelling of 206688327851196 in words is "two hundred six trillion, six hundred eighty-eight billion, three hundred twenty-seven million, eight hundred fifty-one thousand, one hundred ninety-six".