16171481429 has 4 divisors (see below), whose sum is σ = 16222495884. Its totient is φ = 16120466976.

The previous prime is 16171481411. The next prime is 16171481437. The reversal of 16171481429 is 92418417161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2296997329 + 13874484100 = 47927^2 + 117790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16171481429 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 16171481429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16171481329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25506752 + ... + 25507385.

It is an arithmetic number, because the mean of its divisors is an integer number (4055623971).

Almost surely, 2^16171481429 is an apocalyptic number.

It is an amenable number.

16171481429 is a deficient number, since it is larger than the sum of its proper divisors (51014455).

16171481429 is an equidigital number, since it uses as much as digits as its factorization.

16171481429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51014454.

The product of its digits is 96768, while the sum is 44.

The spelling of 16171481429 in words is "sixteen billion, one hundred seventy-one million, four hundred eighty-one thousand, four hundred twenty-nine".