206560000 has 90 divisors (see below), whose sum is σ = 515625572. Its totient is φ = 82560000.

The previous prime is 206559973. The next prime is 206560021. The reversal of 206560000 is 65602.

It is a self number, because there is not a number n which added to its sum of digits gives 206560000.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 159355 + ... + 160645.

Almost surely, 2^206560000 is an apocalyptic number.

206560000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257812786).

206560000 is an abundant number, since it is smaller than the sum of its proper divisors (309065572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206560000 is an frugal number, since it uses more digits than its factorization.

206560000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 206560000 is about 14372.1953785773. The cubic root of 206560000 is about 591.1287402903.

The spelling of 206560000 in words is "two hundred six million, five hundred sixty thousand".