2266661666 has 8 divisors (see below), whose sum is σ = 3479062224. Its totient is φ = 1106974260.

The previous prime is 2266661659. The next prime is 2266661681. The reversal of 2266661666 is 6661666622.

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

It is a super-2 number, since 2×2266661666² = 10275510216227791112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2266661666.

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, 13178180 + ... + 13178351.

It is an arithmetic number, because the mean of its divisors is an integer number (434882778).

Almost surely, 2^2266661666 is an apocalyptic number.

2266661666 is a deficient number, since it is larger than the sum of its proper divisors (1212400558).

2266661666 is a wasteful number, since it uses less digits than its factorization.

2266661666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26356576.

The product of its digits is 1119744, while the sum is 47.

The square root of 2266661666 is about 47609.4703394188. The cubic root of 2266661666 is about 1313.5972581637.

The spelling of 2266661666 in words is "two billion, two hundred sixty-six million, six hundred sixty-one thousand, six hundred sixty-six".