206411361 has 48 divisors (see below), whose sum is σ = 321564672. Its totient is φ = 117374400.

The previous prime is 206411353. The next prime is 206411371. The reversal of 206411361 is 163114602.

It is not a de Polignac number, because 206411361 - 2³ = 206411353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206411371) 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 47 ways as a sum of consecutive naturals, for example, 361206 + ... + 361776.

It is an arithmetic number, because the mean of its divisors is an integer number (6699264).

Almost surely, 2^206411361 is an apocalyptic number.

It is an amenable number.

206411361 is a deficient number, since it is larger than the sum of its proper divisors (115153311).

206411361 is a wasteful number, since it uses less digits than its factorization.

206411361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 206411361 is about 14367.0233869093. The cubic root of 206411361 is about 590.9869156892.

Adding to 206411361 its reverse (163114602), we get a palindrome (369525963).

The spelling of 206411361 in words is "two hundred six million, four hundred eleven thousand, three hundred sixty-one".