163113128617 has 8 divisors (see below), whose sum is σ = 163452892680. Its totient is φ = 162773441280.

The previous prime is 163113128609. The next prime is 163113128621. The reversal of 163113128617 is 716821311361.

It can be written as a sum of positive squares in 4 ways, for example, as 57371746576 + 105741382041 = 239524^2 + 325179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163113128617 - 2³ = 163113128609 is a prime.

It is a super-3 number, since 3×163113128617³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163113128617.

It is not an unprimeable number, because it can be changed into a prime (163113128627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492993 + ... + 6518065.

It is an arithmetic number, because the mean of its divisors is an integer number (20431611585).

Almost surely, 2^163113128617 is an apocalyptic number.

It is an amenable number.

163113128617 is a deficient number, since it is larger than the sum of its proper divisors (339764063).

163113128617 is a wasteful number, since it uses less digits than its factorization.

163113128617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38363.

The product of its digits is 36288, while the sum is 40.

Adding to 163113128617 its reverse (716821311361), we get a palindrome (879934439978).

The spelling of 163113128617 in words is "one hundred sixty-three billion, one hundred thirteen million, one hundred twenty-eight thousand, six hundred seventeen".