20322320008 has 8 divisors (see below), whose sum is σ = 38104350030. Its totient is φ = 10161160000.

The previous prime is 20322319993. The next prime is 20322320017. The reversal of 20322320008 is 80002322302.

It can be written as a sum of positive squares in only one way, i.e., 19571450404 + 750869604 = 139898^2 + 27402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270144993 + ... + 1270145008.

Almost surely, 2^20322320008 is an apocalyptic number.

It is an amenable number.

20322320008 is a deficient number, since it is larger than the sum of its proper divisors (17782030022).

20322320008 is a wasteful number, since it uses less digits than its factorization.

20322320008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540290007 (or 2540290003 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The spelling of 20322320008 in words is "twenty billion, three hundred twenty-two million, three hundred twenty thousand, eight".