206664353 has 16 divisors (see below), whose sum is σ = 244826880. Its totient is φ = 170686656.

The previous prime is 206664323. The next prime is 206664391. The reversal of 206664353 is 353466602.

It is not a de Polignac number, because 206664353 - 2⁸ = 206664097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206664323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166451 + ... + 167687.

It is an arithmetic number, because the mean of its divisors is an integer number (15301680).

Almost surely, 2^206664353 is an apocalyptic number.

It is an amenable number.

206664353 is a deficient number, since it is larger than the sum of its proper divisors (38162527).

206664353 is a wasteful number, since it uses less digits than its factorization.

206664353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 206664353 is about 14375.8252980481. The cubic root of 206664353 is about 591.2282685509.

The spelling of 206664353 in words is "two hundred six million, six hundred sixty-four thousand, three hundred fifty-three".