20163163174 has 48 divisors (see below), whose sum is σ = 40638834000. Its totient is φ = 7393666560.

The previous prime is 20163163171. The next prime is 20163163177. The reversal of 20163163174 is 47136136102.

It is an interprime number because it is at equal distance from previous prime (20163163171) and next prime (20163163177).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163163171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531799 + ... + 568450.

It is an arithmetic number, because the mean of its divisors is an integer number (846642375).

Almost surely, 2^20163163174 is an apocalyptic number.

20163163174 is an abundant number, since it is smaller than the sum of its proper divisors (20475670826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20163163174 is a wasteful number, since it uses less digits than its factorization.

20163163174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100293 (or 1100286 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 20163163174 its reverse (47136136102), we get a palindrome (67299299276).

The spelling of 20163163174 in words is "twenty billion, one hundred sixty-three million, one hundred sixty-three thousand, one hundred seventy-four".