20630160163 has 4 divisors (see below), whose sum is σ = 20630932920. Its totient is φ = 20629387408.

The previous prime is 20630160137. The next prime is 20630160191. The reversal of 20630160163 is 36106103602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20630160163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20630160193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344845 + ... + 400222.

It is an arithmetic number, because the mean of its divisors is an integer number (5157733230).

Almost surely, 2^20630160163 is an apocalyptic number.

20630160163 is a deficient number, since it is larger than the sum of its proper divisors (772757).

20630160163 is an equidigital number, since it uses as much as digits as its factorization.

20630160163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772756.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20630160163 its reverse (36106103602), we get a palindrome (56736263765).

The spelling of 20630160163 in words is "twenty billion, six hundred thirty million, one hundred sixty thousand, one hundred sixty-three".