206532066 has 16 divisors (see below), whose sum is σ = 444838464. Its totient is φ = 63548304.

The previous prime is 206532049. The next prime is 206532097. The reversal of 206532066 is 660235602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323846 + ... + 1324001.

It is an arithmetic number, because the mean of its divisors is an integer number (27802404).

Almost surely, 2^206532066 is an apocalyptic number.

206532066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206532066 is an abundant number, since it is smaller than the sum of its proper divisors (238306398).

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

206532066 is a wasteful number, since it uses less digits than its factorization.

206532066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647865.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 206532066 is about 14371.2235387249. The cubic root of 206532066 is about 591.1020921257.

Adding to 206532066 its reverse (660235602), we get a palindrome (866767668).

The spelling of 206532066 in words is "two hundred six million, five hundred thirty-two thousand, sixty-six".