2006223866 has 12 divisors (see below), whose sum is σ = 3032535066. Its totient is φ = 995437560.

The previous prime is 2006223859. The next prime is 2006223871. The reversal of 2006223866 is 6683226002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1995498241 + 10725625 = 44671^2 + 3275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5096 + ... + 63548.

Almost surely, 2^2006223866 is an apocalyptic number.

2006223866 is a deficient number, since it is larger than the sum of its proper divisors (1026311200).

2006223866 is an equidigital number, since it uses as much as digits as its factorization.

2006223866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58717 (or 58586 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2006223866 is about 44790.8904354446. The cubic root of 2006223866 is about 1261.2266265052.

Adding to 2006223866 its reverse (6683226002), we get a palindrome (8689449868).

The spelling of 2006223866 in words is "two billion, six million, two hundred twenty-three thousand, eight hundred sixty-six".