2568646080 has 1176 divisors, whose sum is σ = 12406371936. Its totient is φ = 492687360.

The previous prime is 2568646063. The next prime is 2568646103. The reversal of 2568646080 is 806468652.

2568646080 is a `hidden beast` number, since 2 + 568 + 6 + 4 + 6 + 0 + 80 = 666.

It is a super-3 number, since 3×2568646080³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 197588154 + ... + 197588166.

It is an arithmetic number, because the mean of its divisors is an integer number (10549636).

Almost surely, 2^2568646080 is an apocalyptic number.

2568646080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2568646080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6203185968).

2568646080 is an abundant number, since it is smaller than the sum of its proper divisors (9837725856).

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

2568646080 is a wasteful number, since it uses less digits than its factorization.

2568646080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 2568646080 is about 50681.8121222989. The cubic root of 2568646080 is about 1369.5190881357.

The spelling of 2568646080 in words is "two billion, five hundred sixty-eight million, six hundred forty-six thousand, eighty".