206132660 has 12 divisors (see below), whose sum is σ = 432878628. Its totient is φ = 82453056.

The previous prime is 206132657. The next prime is 206132683. The reversal of 206132660 is 66231602.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 174345616 = 5638^2 + 13204^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5153297 + ... + 5153336.

It is an arithmetic number, because the mean of its divisors is an integer number (36073219).

Almost surely, 2^206132660 is an apocalyptic number.

206132660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206132660 is an abundant number, since it is smaller than the sum of its proper divisors (226745968).

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

206132660 is a wasteful number, since it uses less digits than its factorization.

206132660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306642 (or 10306640 counting only the distinct ones).

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

The square root of 206132660 is about 14357.3207807028. The cubic root of 206132660 is about 590.7208081934.

The spelling of 206132660 in words is "two hundred six million, one hundred thirty-two thousand, six hundred sixty".