206596611841 has 9 divisors (see below), whose sum is σ = 219472429449. Its totient is φ = 194436597504.

The previous prime is 206596611833. The next prime is 206596611857. The reversal of 206596611841 is 148116695602.

It is a happy number.

The square root of 206596611841 is 454529.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 42733571841 + 163863040000 = 206721^2 + 404800^2 .

It is not a de Polignac number, because 206596611841 - 2³ = 206596611833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206596611241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7713625 + ... + 7740361.

Almost surely, 2^206596611841 is an apocalyptic number.

206596611841 is the 454529-th square number.

206596611841 is the 227265-th centered octagonal number.

It is an amenable number.

206596611841 is a deficient number, since it is larger than the sum of its proper divisors (12875817608).

206596611841 is an frugal number, since it uses more digits than its factorization.

206596611841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53508 (or 26754 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 206596611841 by its sum of digits (49), we get a square (10123233980209 = 3181703²).

The spelling of 206596611841 in words is "two hundred six billion, five hundred ninety-six million, six hundred eleven thousand, eight hundred forty-one".