2560222666 has 8 divisors (see below), whose sum is σ = 3929644224. Its totient is φ = 1250341260.

The previous prime is 2560222657. The next prime is 2560222703. The reversal of 2560222666 is 6662220652.

2560222666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14884930 + ... + 14885101.

It is an arithmetic number, because the mean of its divisors is an integer number (491205528).

Almost surely, 2^2560222666 is an apocalyptic number.

2560222666 is a deficient number, since it is larger than the sum of its proper divisors (1369421558).

2560222666 is a wasteful number, since it uses less digits than its factorization.

2560222666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29770076.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2560222666 is about 50598.6429264659. The cubic root of 2560222666 is about 1368.0204180148.

The spelling of 2560222666 in words is "two billion, five hundred sixty million, two hundred twenty-two thousand, six hundred sixty-six".