2208808066 has 4 divisors (see below), whose sum is σ = 3313212102. Its totient is φ = 1104404032.

The previous prime is 2208808057. The next prime is 2208808067. The reversal of 2208808066 is 6608088022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2202331041 + 6477025 = 46929^2 + 2545^2 .

It is not an unprimeable number, because it can be changed into a prime (2208808067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552202015 + ... + 552202018.

Almost surely, 2^2208808066 is an apocalyptic number.

2208808066 is a deficient number, since it is larger than the sum of its proper divisors (1104404036).

2208808066 is a wasteful number, since it uses less digits than its factorization.

2208808066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104404035.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 2208808066 is about 46997.9581045815. The cubic root of 2208808066 is about 1302.3248469964.

The spelling of 2208808066 in words is "two billion, two hundred eight million, eight hundred eight thousand, sixty-six".