206327243170553 has 8 divisors (see below), whose sum is σ = 206609516338056. Its totient is φ = 206044972156800.

The previous prime is 206327243170463. The next prime is 206327243170589. The reversal of 206327243170553 is 355071342723602.

It can be written as a sum of positive squares in 4 ways, for example, as 160096055550649 + 46231187619904 = 12652907^2 + 6799352^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 206327243170553 - 2⁸ = 206327243170297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206327243100553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328378733 + ... + 329006453.

It is an arithmetic number, because the mean of its divisors is an integer number (25826189542257).

Almost surely, 2^{206327243170553} is an apocalyptic number.

It is an amenable number.

206327243170553 is a deficient number, since it is larger than the sum of its proper divisors (282273167503).

206327243170553 is an equidigital number, since it uses as much as digits as its factorization.

206327243170553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076875.

The product of its (nonzero) digits is 6350400, while the sum is 50.

The spelling of 206327243170553 in words is "two hundred six trillion, three hundred twenty-seven billion, two hundred forty-three million, one hundred seventy thousand, five hundred fifty-three".