206704164 has 12 divisors (see below), whose sum is σ = 482309744. Its totient is φ = 68901384.

The previous prime is 206704129. The next prime is 206704171. The reversal of 206704164 is 461407602.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×206704164² = 85453222829877792, which contains 22 as substring.

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, 8612662 + ... + 8612685.

Almost surely, 2^206704164 is an apocalyptic number.

It is an amenable number.

206704164 is an abundant number, since it is smaller than the sum of its proper divisors (275605580).

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

206704164 is a wasteful number, since it uses less digits than its factorization.

206704164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17225354 (or 17225352 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 206704164 is about 14377.2098823103. The cubic root of 206704164 is about 591.2662300685.

The spelling of 206704164 in words is "two hundred six million, seven hundred four thousand, one hundred sixty-four".