206565501201 has 8 divisors (see below), whose sum is σ = 275423413920. Its totient is φ = 137708961312.

The previous prime is 206565501179. The next prime is 206565501217. The reversal of 206565501201 is 102105565602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206565501201 - 2¹⁰ = 206565500177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206565501271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83770 + ... + 648188.

It is an arithmetic number, because the mean of its divisors is an integer number (34427926740).

Almost surely, 2^206565501201 is an apocalyptic number.

It is an amenable number.

206565501201 is a deficient number, since it is larger than the sum of its proper divisors (68857912719).

206565501201 is a wasteful number, since it uses less digits than its factorization.

206565501201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686415.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 206565501201 in words is "two hundred six billion, five hundred sixty-five million, five hundred one thousand, two hundred one".