2655570666 has 32 divisors (see below), whose sum is σ = 6073591680. Its totient is φ = 758270016.

The previous prime is 2655570647. The next prime is 2655570683. The reversal of 2655570666 is 6660755562.

2655570666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53280 + ... + 90276.

It is an arithmetic number, because the mean of its divisors is an integer number (189799740).

Almost surely, 2^2655570666 is an apocalyptic number.

2655570666 is an abundant number, since it is smaller than the sum of its proper divisors (3418021014).

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

2655570666 is a wasteful number, since it uses less digits than its factorization.

2655570666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38718.

The product of its (nonzero) digits is 2268000, while the sum is 48.

The square root of 2655570666 is about 51532.2293909355. The cubic root of 2655570666 is about 1384.7964904924.

The spelling of 2655570666 in words is "two billion, six hundred fifty-five million, five hundred seventy thousand, six hundred sixty-six".