20463026163161 has 4 divisors (see below), whose sum is σ = 20497188144000. Its totient is φ = 20428864182324.

The previous prime is 20463026163149. The next prime is 20463026163197. The reversal of 20463026163161 is 16136162036402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20463026163161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20463026163101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17080989521 + ... + 17080990718.

It is an arithmetic number, because the mean of its divisors is an integer number (5124297036000).

Almost surely, 2^{20463026163161} is an apocalyptic number.

It is an amenable number.

20463026163161 is a deficient number, since it is larger than the sum of its proper divisors (34161980839).

20463026163161 is an equidigital number, since it uses as much as digits as its factorization.

20463026163161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34161980838.

The product of its (nonzero) digits is 186624, while the sum is 41.

Adding to 20463026163161 its reverse (16136162036402), we get a palindrome (36599188199563).

The spelling of 20463026163161 in words is "twenty trillion, four hundred sixty-three billion, twenty-six million, one hundred sixty-three thousand, one hundred sixty-one".