206132680785788 has 12 divisors (see below), whose sum is σ = 373171232457240. Its totient is φ = 99512328655152.

The previous prime is 206132680785761. The next prime is 206132680785851. The reversal of 206132680785788 is 887587086231602.

It is a happy number.

It is a super-2 number, since 2×206132680785788² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888502934306 + ... + 888502934537.

It is an arithmetic number, because the mean of its divisors is an integer number (31097602704770).

Almost surely, 2^{206132680785788} is an apocalyptic number.

It is an amenable number.

206132680785788 is a deficient number, since it is larger than the sum of its proper divisors (167038551671452).

206132680785788 is a wasteful number, since it uses less digits than its factorization.

206132680785788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777005868876 (or 1777005868874 counting only the distinct ones).

The product of its (nonzero) digits is 433520640, while the sum is 71.

The spelling of 206132680785788 in words is "two hundred six trillion, one hundred thirty-two billion, six hundred eighty million, seven hundred eighty-five thousand, seven hundred eighty-eight".