204088315356816 has 40 divisors (see below), whose sum is σ = 575157979643424. Its totient is φ = 61844944047360.

The previous prime is 204088315356713. The next prime is 204088315356923. The reversal of 204088315356816 is 618653513880402.

It is a self number, because there is not a number n which added to its sum of digits gives 204088315356816.

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, 193265449621 + ... + 193265450676.

Almost surely, 2^{204088315356816} is an apocalyptic number.

It is an amenable number.

204088315356816 is an abundant number, since it is smaller than the sum of its proper divisors (371069664286608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204088315356816 is a wasteful number, since it uses less digits than its factorization.

204088315356816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386530900319 (or 386530900313 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 204088315356816 in words is "two hundred four trillion, eighty-eight billion, three hundred fifteen million, three hundred fifty-six thousand, eight hundred sixteen".