20563165411 has 8 divisors (see below), whose sum is σ = 20676663360. Its totient is φ = 20449896768.

The previous prime is 20563165391. The next prime is 20563165417. The reversal of 20563165411 is 11456136502.

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

It is a cyclic number.

It is not a de Polignac number, because 20563165411 - 2⁹ = 20563164899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20563165417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124095 + ... + 237751.

It is an arithmetic number, because the mean of its divisors is an integer number (2584582920).

Almost surely, 2^20563165411 is an apocalyptic number.

20563165411 is a deficient number, since it is larger than the sum of its proper divisors (113497949).

20563165411 is a wasteful number, since it uses less digits than its factorization.

20563165411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114653.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 20563165411 in words is "twenty billion, five hundred sixty-three million, one hundred sixty-five thousand, four hundred eleven".