204305040355 has 8 divisors (see below), whose sum is σ = 264024975312. Its totient is φ = 150871414368.

The previous prime is 204305040347. The next prime is 204305040361. The reversal of 204305040355 is 553040503402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 204305040355 - 2³ = 204305040347 is a prime.

It is a Duffinian 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, 1571577169 + ... + 1571577298.

It is an arithmetic number, because the mean of its divisors is an integer number (33003121914).

Almost surely, 2^204305040355 is an apocalyptic number.

204305040355 is a deficient number, since it is larger than the sum of its proper divisors (59719934957).

204305040355 is a wasteful number, since it uses less digits than its factorization.

204305040355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143154485.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 204305040355 its reverse (553040503402), we get a palindrome (757345543757).

The spelling of 204305040355 in words is "two hundred four billion, three hundred five million, forty thousand, three hundred fifty-five".