20004880066 has 8 divisors (see below), whose sum is σ = 30017686860. Its totient is φ = 9998984448.

The previous prime is 20004880057. The next prime is 20004880073. The reversal of 20004880066 is 66008840002.

It can be written as a sum of positive squares in 2 ways, for example, as 19748399841 + 256480225 = 140529^2 + 16015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1720551 + ... + 1732138.

Almost surely, 2^20004880066 is an apocalyptic number.

20004880066 is a deficient number, since it is larger than the sum of its proper divisors (10012806794).

20004880066 is a wasteful number, since it uses less digits than its factorization.

20004880066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455588.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20004880066 in words is "twenty billion, four million, eight hundred eighty thousand, sixty-six".