16144317599 has 4 divisors (see below), whose sum is σ = 16151648136. Its totient is φ = 16136987064.

The previous prime is 16144317583. The next prime is 16144317643. The reversal of 16144317599 is 99571344161.

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

It is a cyclic number.

It is not a de Polignac number, because 16144317599 - 2⁴ = 16144317583 is a prime.

It is a super-2 number, since 2×16144317599² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16144310599) 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, 3661964 + ... + 3666369.

It is an arithmetic number, because the mean of its divisors is an integer number (4037912034).

Almost surely, 2^16144317599 is an apocalyptic number.

16144317599 is a deficient number, since it is larger than the sum of its proper divisors (7330537).

16144317599 is an equidigital number, since it uses as much as digits as its factorization.

16144317599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330536.

The product of its digits is 816480, while the sum is 50.

The spelling of 16144317599 in words is "sixteen billion, one hundred forty-four million, three hundred seventeen thousand, five hundred ninety-nine".