204556527816 has 16 divisors (see below), whose sum is σ = 511391319600. Its totient is φ = 68185509264.

The previous prime is 204556527811. The next prime is 204556527853. The reversal of 204556527816 is 618725655402.

It is not an unprimeable number, because it can be changed into a prime (204556527811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261594306 + ... + 4261594353.

It is an arithmetic number, because the mean of its divisors is an integer number (31961957475).

Almost surely, 2^204556527816 is an apocalyptic number.

It is an amenable number.

204556527816 is an abundant number, since it is smaller than the sum of its proper divisors (306834791784).

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

204556527816 is a wasteful number, since it uses less digits than its factorization.

204556527816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523188668 (or 8523188664 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 204556527816 in words is "two hundred four billion, five hundred fifty-six million, five hundred twenty-seven thousand, eight hundred sixteen".