204649604712 has 192 divisors, whose sum is σ = 664958361600. Its totient is φ = 55625823360.

The previous prime is 204649604657. The next prime is 204649604759. The reversal of 204649604712 is 217406946402.

204649604712 is a `hidden beast` number, since 20 + 4 + 6 + 4 + 9 + 604 + 7 + 12 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 810813 + ... + 1032819.

It is an arithmetic number, because the mean of its divisors is an integer number (3463324800).

Almost surely, 2^204649604712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204649604712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332479180800).

204649604712 is an abundant number, since it is smaller than the sum of its proper divisors (460308756888).

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

204649604712 is a wasteful number, since it uses less digits than its factorization.

204649604712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222116 (or 222109 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 204649604712 in words is "two hundred four billion, six hundred forty-nine million, six hundred four thousand, seven hundred twelve".