206528851211 has 4 divisors (see below), whose sum is σ = 208573691424. Its totient is φ = 204484011000.

The previous prime is 206528851169. The next prime is 206528851261. The reversal of 206528851211 is 112158825602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206528851211 - 2¹⁸ = 206528589067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206528851261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022419955 + ... + 1022420156.

It is an arithmetic number, because the mean of its divisors is an integer number (52143422856).

Almost surely, 2^206528851211 is an apocalyptic number.

206528851211 is a deficient number, since it is larger than the sum of its proper divisors (2044840213).

206528851211 is a wasteful number, since it uses less digits than its factorization.

206528851211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044840212.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 206528851211 in words is "two hundred six billion, five hundred twenty-eight million, eight hundred fifty-one thousand, two hundred eleven".