206684164 has 24 divisors (see below), whose sum is σ = 399627648. Its totient is φ = 93033600.

The previous prime is 206684143. The next prime is 206684167. The reversal of 206684164 is 461486602.

It is not an unprimeable number, because it can be changed into a prime (206684167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64512 + ... + 67639.

It is an arithmetic number, because the mean of its divisors is an integer number (16651152).

Almost surely, 2^206684164 is an apocalyptic number.

It is an amenable number.

206684164 is a deficient number, since it is larger than the sum of its proper divisors (192943484).

206684164 is a wasteful number, since it uses less digits than its factorization.

206684164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132195 (or 132193 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 206684164 is about 14376.5143202377. The cubic root of 206684164 is about 591.2471598092.

The spelling of 206684164 in words is "two hundred six million, six hundred eighty-four thousand, one hundred sixty-four".