20648706680008 has 64 divisors (see below), whose sum is σ = 42832653552000. Its totient is φ = 9253195123200.

The previous prime is 20648706679943. The next prime is 20648706680011. The reversal of 20648706680008 is 80008660784602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192440998 + ... + 192548266.

It is an arithmetic number, because the mean of its divisors is an integer number (669260211750).

Almost surely, 2^{20648706680008} is an apocalyptic number.

It is an amenable number.

20648706680008 is an abundant number, since it is smaller than the sum of its proper divisors (22183946871992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20648706680008 is a wasteful number, since it uses less digits than its factorization.

20648706680008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138166 (or 138162 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 20648706680008 in words is "twenty trillion, six hundred forty-eight billion, seven hundred six million, six hundred eighty thousand, eight".