163116323615 has 16 divisors (see below), whose sum is σ = 223711897152. Its totient is φ = 111846438144.

The previous prime is 163116323561. The next prime is 163116323647. The reversal of 163116323615 is 516323611361.

It is not a de Polignac number, because 163116323615 - 2¹⁴ = 163116307231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869267 + ... + 1040123.

It is an arithmetic number, because the mean of its divisors is an integer number (13981993572).

Almost surely, 2^163116323615 is an apocalyptic number.

163116323615 is a deficient number, since it is larger than the sum of its proper divisors (60595573537).

163116323615 is a wasteful number, since it uses less digits than its factorization.

163116323615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198146.

The product of its digits is 58320, while the sum is 38.

Adding to 163116323615 its reverse (516323611361), we get a palindrome (679439934976).

The spelling of 163116323615 in words is "one hundred sixty-three billion, one hundred sixteen million, three hundred twenty-three thousand, six hundred fifteen".