206600261 has 8 divisors (see below), whose sum is σ = 236293440. Its totient is φ = 176951808.

The previous prime is 206600227. The next prime is 206600291. The reversal of 206600261 is 162006602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206600261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206600221) 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 7 ways as a sum of consecutive naturals, for example, 611 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (29536680).

Almost surely, 2^206600261 is an apocalyptic number.

It is an amenable number.

206600261 is a deficient number, since it is larger than the sum of its proper divisors (29693179).

206600261 is a wasteful number, since it uses less digits than its factorization.

206600261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22363.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 206600261 is about 14373.5959662153. The cubic root of 206600261 is about 591.1671438020.

Adding to 206600261 its reverse (162006602), we get a palindrome (368606863).

The spelling of 206600261 in words is "two hundred six million, six hundred thousand, two hundred sixty-one".