163116080538 has 32 divisors (see below), whose sum is σ = 326656696320. Its totient is φ = 54301316400.

The previous prime is 163116080531. The next prime is 163116080551. The reversal of 163116080538 is 835080611361.

It is a self number, because there is not a number n which added to its sum of digits gives 163116080538.

It is not an unprimeable number, because it can be changed into a prime (163116080531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24492253 + ... + 24498911.

It is an arithmetic number, because the mean of its divisors is an integer number (10208021760).

Almost surely, 2^163116080538 is an apocalyptic number.

163116080538 is an abundant number, since it is smaller than the sum of its proper divisors (163540615782).

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

163116080538 is a wasteful number, since it uses less digits than its factorization.

163116080538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362.

The product of its (nonzero) digits is 103680, while the sum is 42.

Adding to 163116080538 its reverse (835080611361), we get a palindrome (998196691899).

The spelling of 163116080538 in words is "one hundred sixty-three billion, one hundred sixteen million, eighty thousand, five hundred thirty-eight".