204565242565402 has 8 divisors (see below), whose sum is σ = 307513477437012. Its totient is φ = 102060750086400.

The previous prime is 204565242565379. The next prime is 204565242565447.

It is a happy number.

204565242565402 is nontrivially palindromic in base 10.

204565242565402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200355560399401 + 4209682166001 = 14154701^2 + 2051751^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 204565242565402.

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, 110935596999 + ... + 110935598842.

Almost surely, 2^{204565242565402} is an apocalyptic number.

204565242565402 is a deficient number, since it is larger than the sum of its proper divisors (102948234871610).

204565242565402 is a wasteful number, since it uses less digits than its factorization.

204565242565402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221871196304.

The product of its (nonzero) digits is 23040000, while the sum is 52.

The spelling of 204565242565402 in words is "two hundred four trillion, five hundred sixty-five billion, two hundred forty-two million, five hundred sixty-five thousand, four hundred two".