16176521317 has 16 divisors (see below), whose sum is σ = 17840333952. Its totient is φ = 14545105920.

The previous prime is 16176521311. The next prime is 16176521329. The reversal of 16176521317 is 71312567161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16176521317 is a prime.

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 16176521317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16176521311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122728 + ... + 2130334.

It is an arithmetic number, because the mean of its divisors is an integer number (1115020872).

Almost surely, 2^16176521317 is an apocalyptic number.

It is an amenable number.

16176521317 is a deficient number, since it is larger than the sum of its proper divisors (1663812635).

16176521317 is a wasteful number, since it uses less digits than its factorization.

16176521317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9708.

The product of its digits is 52920, while the sum is 40.

The spelling of 16176521317 in words is "sixteen billion, one hundred seventy-six million, five hundred twenty-one thousand, three hundred seventeen".