20660163331027 has 32 divisors (see below), whose sum is σ = 22691410156800. Its totient is φ = 18654974697600.

The previous prime is 20660163331019. The next prime is 20660163331051. The reversal of 20660163331027 is 72013336106602.

It is a cyclic number.

It is not a de Polignac number, because 20660163331027 - 2³ = 20660163331019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20660163331427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130877249 + ... + 1130895517.

It is an arithmetic number, because the mean of its divisors is an integer number (709106567400).

Almost surely, 2^{20660163331027} is an apocalyptic number.

20660163331027 is a deficient number, since it is larger than the sum of its proper divisors (2031246825773).

20660163331027 is a wasteful number, since it uses less digits than its factorization.

20660163331027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19747.

The product of its (nonzero) digits is 163296, while the sum is 40.

Adding to 20660163331027 its reverse (72013336106602), we get a palindrome (92673499437629).

The spelling of 20660163331027 in words is "twenty trillion, six hundred sixty billion, one hundred sixty-three million, three hundred thirty-one thousand, twenty-seven".