20228208008 has 16 divisors (see below), whose sum is σ = 37965346380. Its totient is φ = 10104115648.

The previous prime is 20228207999. The next prime is 20228208031. The reversal of 20228208008 is 80080282202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17720401924 + 2507806084 = 133118^2 + 50078^2 .

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, 1239935 + ... + 1256142.

Almost surely, 2^20228208008 is an apocalyptic number.

It is an amenable number.

20228208008 is a deficient number, since it is larger than the sum of its proper divisors (17737138372).

20228208008 is a wasteful number, since it uses less digits than its factorization.

20228208008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497096 (or 2497092 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 20228208008 in words is "twenty billion, two hundred twenty-eight million, two hundred eight thousand, eight".