206565543052 has 12 divisors (see below), whose sum is σ = 394352400456. Its totient is φ = 93893428640.

The previous prime is 206565543047. The next prime is 206565543059. The reversal of 206565543052 is 250345565602.

It is not an unprimeable number, because it can be changed into a prime (206565543059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347335673 + ... + 2347335760.

It is an arithmetic number, because the mean of its divisors is an integer number (32862700038).

Almost surely, 2^206565543052 is an apocalyptic number.

206565543052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206565543052 is a deficient number, since it is larger than the sum of its proper divisors (187786857404).

206565543052 is a wasteful number, since it uses less digits than its factorization.

206565543052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694671448 (or 4694671446 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 206565543052 in words is "two hundred six billion, five hundred sixty-five million, five hundred forty-three thousand, fifty-two".