206432164 has 12 divisors (see below), whose sum is σ = 369657904. Its totient is φ = 100815624.

The previous prime is 206432143. The next prime is 206432197. The reversal of 206432164 is 461234602.

It is a super-2 number, since 2×206432164² = 85228476667445792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599922 + ... + 600265.

Almost surely, 2^206432164 is an apocalyptic number.

It is an amenable number.

206432164 is a deficient number, since it is larger than the sum of its proper divisors (163225740).

206432164 is a wasteful number, since it uses less digits than its factorization.

206432164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200234 (or 1200232 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206432164 is about 14367.7473530126. The cubic root of 206432164 is about 591.0067690663.

Adding to 206432164 its reverse (461234602), we get a palindrome (667666766).

The spelling of 206432164 in words is "two hundred six million, four hundred thirty-two thousand, one hundred sixty-four".