205664002 has 8 divisors (see below), whose sum is σ = 308612556. Its totient is φ = 102793152.

The previous prime is 205663987. The next prime is 205664033. The reversal of 205664002 is 200466502.

It can be written as a sum of positive squares in 2 ways, for example, as 186295201 + 19368801 = 13649^2 + 4401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 12283 + ... + 23710.

Almost surely, 2^205664002 is an apocalyptic number.

205664002 is a deficient number, since it is larger than the sum of its proper divisors (102948554).

205664002 is a wasteful number, since it uses less digits than its factorization.

205664002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38852.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 205664002 is about 14340.9902726416. The cubic root of 205664002 is about 590.2727858568.

The spelling of 205664002 in words is "two hundred five million, six hundred sixty-four thousand, two".