204632561016 has 96 divisors (see below), whose sum is σ = 601544885760. Its totient is φ = 62468050176.

The previous prime is 204632561011. The next prime is 204632561027. The reversal of 204632561016 is 610165236402.

204632561016 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 3 + 25 + 610 + 16 = 666.

204632561016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204632561011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741855 + ... + 979598.

It is an arithmetic number, because the mean of its divisors is an integer number (6266092560).

Almost surely, 2^204632561016 is an apocalyptic number.

204632561016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

204632561016 is an abundant number, since it is smaller than the sum of its proper divisors (396912324744).

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

204632561016 is a wasteful number, since it uses less digits than its factorization.

204632561016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721605 (or 1721598 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 204632561016 its reverse (610165236402), we get a palindrome (814797797418).

The spelling of 204632561016 in words is "two hundred four billion, six hundred thirty-two million, five hundred sixty-one thousand, sixteen".