20216274163 has 4 divisors (see below), whose sum is σ = 20274200800. Its totient is φ = 20158347528.

The previous prime is 20216274161. The next prime is 20216274181. The reversal of 20216274163 is 36147261202.

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

It is a cyclic number.

It is not a de Polignac number, because 20216274163 - 2¹ = 20216274161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20216274161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28962795 + ... + 28963492.

It is an arithmetic number, because the mean of its divisors is an integer number (5068550200).

Almost surely, 2^20216274163 is an apocalyptic number.

20216274163 is a deficient number, since it is larger than the sum of its proper divisors (57926637).

20216274163 is an equidigital number, since it uses as much as digits as its factorization.

20216274163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57926636.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 20216274163 in words is "twenty billion, two hundred sixteen million, two hundred seventy-four thousand, one hundred sixty-three".