20888648804048 has 10 divisors (see below), whose sum is σ = 40471757057874. Its totient is φ = 10444324402016.

The previous prime is 20888648804011. The next prime is 20888648804057. The reversal of 20888648804048 is 84040884688802.

It can be written as a sum of positive squares in only one way, i.e., 11820311572624 + 9068337231424 = 3438068^2 + 3011368^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652770275111 + ... + 652770275142.

Almost surely, 2^{20888648804048} is an apocalyptic number.

It is an amenable number.

20888648804048 is a deficient number, since it is larger than the sum of its proper divisors (19583108253826).

20888648804048 is a wasteful number, since it uses less digits than its factorization.

20888648804048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305540550261 (or 1305540550255 counting only the distinct ones).

The product of its (nonzero) digits is 201326592, while the sum is 68.

The spelling of 20888648804048 in words is "twenty trillion, eight hundred eighty-eight billion, six hundred forty-eight million, eight hundred four thousand, forty-eight".