204260668488 has 80 divisors (see below), whose sum is σ = 573294670080. Its totient is φ = 67946975712.

The previous prime is 204260668471. The next prime is 204260668523. The reversal of 204260668488 is 884866062402.

204260668488 is a `hidden beast` number, since 2 + 0 + 42 + 60 + 6 + 68 + 488 = 666.

204260668488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204260668488² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 8056 + ... + 639207.

It is an arithmetic number, because the mean of its divisors is an integer number (7166183376).

Almost surely, 2^204260668488 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 204260668488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286647335040).

204260668488 is an abundant number, since it is smaller than the sum of its proper divisors (369034001592).

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

204260668488 is a wasteful number, since it uses less digits than its factorization.

204260668488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647768 (or 647755 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 204260668488 in words is "two hundred four billion, two hundred sixty million, six hundred sixty-eight thousand, four hundred eighty-eight".