2560213566 has 48 divisors (see below), whose sum is σ = 5956206048. Its totient is φ = 791884800.

The previous prime is 2560213547. The next prime is 2560213571. The reversal of 2560213566 is 6653120652.

It is a happy number.

2560213566 is a `hidden beast` number, since 2 + 560 + 2 + 1 + 35 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2560213566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37195 + ... + 80646.

It is an arithmetic number, because the mean of its divisors is an integer number (124087626).

Almost surely, 2^2560213566 is an apocalyptic number.

2560213566 is an abundant number, since it is smaller than the sum of its proper divisors (3395992482).

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

2560213566 is a wasteful number, since it uses less digits than its factorization.

2560213566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117937 (or 117934 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2560213566 is about 50598.5530030257. The cubic root of 2560213566 is about 1368.0187971922.

The spelling of 2560213566 in words is "two billion, five hundred sixty million, two hundred thirteen thousand, five hundred sixty-six".