206032661 has 8 divisors (see below), whose sum is σ = 209788800. Its totient is φ = 202285440.

The previous prime is 206032591. The next prime is 206032681. The reversal of 206032661 is 166230602.

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 206032661 - 2¹⁸ = 205770517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 206032661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206032681) 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, 59621 + ... + 62981.

It is an arithmetic number, because the mean of its divisors is an integer number (26223600).

Almost surely, 2^206032661 is an apocalyptic number.

It is an amenable number.

206032661 is a deficient number, since it is larger than the sum of its proper divisors (3756139).

206032661 is a wasteful number, since it uses less digits than its factorization.

206032661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 206032661 is about 14353.8378491608. The cubic root of 206032661 is about 590.6252693223.

The spelling of 206032661 in words is "two hundred six million, thirty-two thousand, six hundred sixty-one".