2205050666 has 24 divisors (see below), whose sum is σ = 4143559140. Its totient is φ = 872327232.

The previous prime is 2205050651. The next prime is 2205050693. The reversal of 2205050666 is 6660505022.

2205050666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2104148641 + 100902025 = 45871^2 + 10045^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 864131 + ... + 866678.

Almost surely, 2^2205050666 is an apocalyptic number.

2205050666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2205050666 is a deficient number, since it is larger than the sum of its proper divisors (1938508474).

2205050666 is a wasteful number, since it uses less digits than its factorization.

2205050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730838 (or 1730831 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2205050666 is about 46957.9670130639. The cubic root of 2205050666 is about 1301.5859669380.

Adding to 2205050666 its reverse (6660505022), we get a palindrome (8865555688).

The spelling of 2205050666 in words is "two billion, two hundred five million, fifty thousand, six hundred sixty-six".