206560105 has 8 divisors (see below), whose sum is σ = 247966272. Its totient is φ = 165185328.

The previous prime is 206560103. The next prime is 206560111. The reversal of 206560105 is 501065602.

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 206560105 - 2¹ = 206560103 is a prime.

It is a super-2 number, since 2×206560105² = 85334153955222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206560105.

It is not an unprimeable number, because it can be changed into a prime (206560103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10564 + ... + 22906.

It is an arithmetic number, because the mean of its divisors is an integer number (30995784).

Almost surely, 2^206560105 is an apocalyptic number.

It is an amenable number.

206560105 is a deficient number, since it is larger than the sum of its proper divisors (41406167).

206560105 is a wasteful number, since it uses less digits than its factorization.

206560105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15695.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 206560105 is about 14372.1990314635. The cubic root of 206560105 is about 591.1288404525.

The spelling of 206560105 in words is "two hundred six million, five hundred sixty thousand, one hundred five".