206120164 has 12 divisors (see below), whose sum is σ = 365276800. Its totient is φ = 101755368.

The previous prime is 206120143. The next prime is 206120177. The reversal of 206120164 is 461021602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325824 + ... + 326455.

Almost surely, 2^206120164 is an apocalyptic number.

It is an amenable number.

206120164 is a deficient number, since it is larger than the sum of its proper divisors (159156636).

206120164 is a wasteful number, since it uses less digits than its factorization.

206120164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652362 (or 652360 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 206120164 is about 14356.8855954208. The cubic root of 206120164 is about 590.7088712263.

Adding to 206120164 its reverse (461021602), we get a palindrome (667141766).

The spelling of 206120164 in words is "two hundred six million, one hundred twenty thousand, one hundred sixty-four".