206570565212 has 12 divisors (see below), whose sum is σ = 394361988216. Its totient is φ = 93895711440.

The previous prime is 206570565211. The next prime is 206570565233. The reversal of 206570565212 is 212565075602.

It is a self number, because there is not a number n which added to its sum of digits gives 206570565212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206570565211) 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, 2347392743 + ... + 2347392830.

It is an arithmetic number, because the mean of its divisors is an integer number (32863499018).

Almost surely, 2^206570565212 is an apocalyptic number.

206570565212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206570565212 is a deficient number, since it is larger than the sum of its proper divisors (187791423004).

206570565212 is a wasteful number, since it uses less digits than its factorization.

206570565212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694785588 (or 4694785586 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 206570565212 in words is "two hundred six billion, five hundred seventy million, five hundred sixty-five thousand, two hundred twelve".