206216028351 has 24 divisors (see below), whose sum is σ = 299559062400. Its totient is φ = 136697576400.

The previous prime is 206216028289. The next prime is 206216028391. The reversal of 206216028351 is 153820612602.

206216028351 is a `hidden beast` number, since 2 + 0 + 621 + 6 + 0 + 28 + 3 + 5 + 1 = 666.

206216028351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206216028351 - 2⁷ = 206216028223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206216028391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2777016 + ... + 2850306.

It is an arithmetic number, because the mean of its divisors is an integer number (12481627600).

Almost surely, 2^206216028351 is an apocalyptic number.

206216028351 is a deficient number, since it is larger than the sum of its proper divisors (93343034049).

206216028351 is a wasteful number, since it uses less digits than its factorization.

206216028351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75067 (or 75064 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 206216028351 in words is "two hundred six billion, two hundred sixteen million, twenty-eight thousand, three hundred fifty-one".