16161829318 has 4 divisors (see below), whose sum is σ = 24242743980. Its totient is φ = 8080914658.

The previous prime is 16161829303. The next prime is 16161829351. The reversal of 16161829318 is 81392816161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81392816161 = 223 ⋅364990207.

It is a super-2 number, since 2×16161829318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4040457328 + ... + 4040457331.

It is an arithmetic number, because the mean of its divisors is an integer number (6060685995).

Almost surely, 2^16161829318 is an apocalyptic number.

16161829318 is a deficient number, since it is larger than the sum of its proper divisors (8080914662).

16161829318 is an equidigital number, since it uses as much as digits as its factorization.

16161829318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080914661.

The product of its digits is 124416, while the sum is 46.

The spelling of 16161829318 in words is "sixteen billion, one hundred sixty-one million, eight hundred twenty-nine thousand, three hundred eighteen".