16161829317 has 20 divisors (see below), whose sum is σ = 24152604300. Its totient is φ = 10770257664.

The previous prime is 16161829303. The next prime is 16161829351. The reversal of 16161829317 is 71392816161.

16161829317 is a `hidden beast` number, since 1 + 6 + 1 + 618 + 29 + 3 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10390540356 + 5771288961 = 101934^2 + 75969^2 .

It is not a de Polignac number, because 16161829317 - 2³⁰ = 15088087493 is a prime.

It is a super-2 number, since 2×16161829317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161829517) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171559 + ... + 248507.

It is an arithmetic number, because the mean of its divisors is an integer number (1207630215).

Almost surely, 2^16161829317 is an apocalyptic number.

It is an amenable number.

16161829317 is a deficient number, since it is larger than the sum of its proper divisors (7990774983).

16161829317 is an equidigital number, since it uses as much as digits as its factorization.

16161829317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79554 (or 79545 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The spelling of 16161829317 in words is "sixteen billion, one hundred sixty-one million, eight hundred twenty-nine thousand, three hundred seventeen".