204340668668 has 24 divisors (see below), whose sum is σ = 368054194704. Its totient is φ = 99205948800.

The previous prime is 204340668659. The next prime is 204340668683. The reversal of 204340668668 is 866866043402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917955 + ... + 2987162.

It is an arithmetic number, because the mean of its divisors is an integer number (15335591446).

Almost surely, 2^204340668668 is an apocalyptic number.

It is an amenable number.

204340668668 is a deficient number, since it is larger than the sum of its proper divisors (163713526036).

204340668668 is a wasteful number, since it uses less digits than its factorization.

204340668668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905373 (or 5905371 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 53.

The spelling of 204340668668 in words is "two hundred four billion, three hundred forty million, six hundred sixty-eight thousand, six hundred sixty-eight".