20710062858161 has 2 divisors, whose sum is σ = 20710062858162. Its totient is φ = 20710062858160.

The previous prime is 20710062858151. The next prime is 20710062858241. The reversal of 20710062858161 is 16185826001702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20710062790561 + 67600 = 4550831^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 20710062858161 - 2⁶ = 20710062858097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20710062858151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355031429080 + 10355031429081.

It is an arithmetic number, because the mean of its divisors is an integer number (10355031429081).

Almost surely, 2^{20710062858161} is an apocalyptic number.

It is an amenable number.

20710062858161 is a deficient number, since it is larger than the sum of its proper divisors (1).

20710062858161 is an equidigital number, since it uses as much as digits as its factorization.

20710062858161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 47.

Adding to 20710062858161 its reverse (16185826001702), we get a palindrome (36895888859863).

The spelling of 20710062858161 in words is "twenty trillion, seven hundred ten billion, sixty-two million, eight hundred fifty-eight thousand, one hundred sixty-one".