206556200200656 has 60 divisors (see below), whose sum is σ = 578072032083520. Its totient is φ = 68851881506880.

The previous prime is 206556200200633. The next prime is 206556200200733. The reversal of 206556200200656 is 656002002655602.

206556200200656 is a `hidden beast` number, since 2 + 0 + 6 + 5 + 562 + 0 + 0 + 20 + 0 + 65 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58286451 + ... + 61728621.

Almost surely, 2^{206556200200656} is an apocalyptic number.

It is an amenable number.

206556200200656 is an abundant number, since it is smaller than the sum of its proper divisors (371515831882864).

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

206556200200656 is a wasteful number, since it uses less digits than its factorization.

206556200200656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858904 (or 3858895 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 206556200200656 in words is "two hundred six trillion, five hundred fifty-six billion, two hundred million, two hundred thousand, six hundred fifty-six".