2660665222 has 8 divisors (see below), whose sum is σ = 3998630376. Its totient is φ = 1327788432.

The previous prime is 2660665201. The next prime is 2660665229. The reversal of 2660665222 is 2225660662.

2660665222 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660665229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270783 + ... + 1272874.

It is an arithmetic number, because the mean of its divisors is an integer number (499828797).

Almost surely, 2^2660665222 is an apocalyptic number.

2660665222 is a deficient number, since it is larger than the sum of its proper divisors (1337965154).

2660665222 is a wasteful number, since it uses less digits than its factorization.

2660665222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544182.

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

The square root of 2660665222 is about 51581.6364804375. The cubic root of 2660665222 is about 1385.6814749864.

The spelling of 2660665222 in words is "two billion, six hundred sixty million, six hundred sixty-five thousand, two hundred twenty-two".