206255636620 has 48 divisors (see below), whose sum is σ = 472545964800. Its totient is φ = 74996803520.

The previous prime is 206255636611. The next prime is 206255636633. The reversal of 206255636620 is 26636552602.

206255636620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4610721 + ... + 4655239.

It is an arithmetic number, because the mean of its divisors is an integer number (9844707600).

Almost surely, 2^206255636620 is an apocalyptic number.

206255636620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206255636620 is an abundant number, since it is smaller than the sum of its proper divisors (266290328180).

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

206255636620 is a wasteful number, since it uses less digits than its factorization.

206255636620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65598 (or 65596 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 206255636620 in words is "two hundred six billion, two hundred fifty-five million, six hundred thirty-six thousand, six hundred twenty".