204063612660 has 120 divisors (see below), whose sum is σ = 673847586720. Its totient is φ = 51552904896.

The previous prime is 204063612653. The next prime is 204063612661. The reversal of 204063612660 is 66216360402.

204063612660 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 636 + 12 + 6 + 6 + 0 = 666.

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 (204063612661) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3284094 + ... + 3345653.

It is an arithmetic number, because the mean of its divisors is an integer number (5615396556).

Almost surely, 2^204063612660 is an apocalyptic number.

204063612660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204063612660 is an abundant number, since it is smaller than the sum of its proper divisors (469783974060).

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

204063612660 is a wasteful number, since it uses less digits than its factorization.

204063612660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629787 (or 6629776 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 204063612660 in words is "two hundred four billion, sixty-three million, six hundred twelve thousand, six hundred sixty".