16344816349 has 8 divisors (see below), whose sum is σ = 16626357720. Its totient is φ = 16063713600.

The previous prime is 16344816343. The next prime is 16344816407. The reversal of 16344816349 is 94361844361.

It can be written as a sum of positive squares in 4 ways, for example, as 1847452324 + 14497364025 = 42982^2 + 120405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16344816349 - 2⁷ = 16344816221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16344816343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34042 + ... + 183979.

It is an arithmetic number, because the mean of its divisors is an integer number (2078294715).

Almost surely, 2^16344816349 is an apocalyptic number.

It is an amenable number.

16344816349 is a deficient number, since it is larger than the sum of its proper divisors (281541371).

16344816349 is a wasteful number, since it uses less digits than its factorization.

16344816349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219311.

The product of its digits is 1492992, while the sum is 49.

The spelling of 16344816349 in words is "sixteen billion, three hundred forty-four million, eight hundred sixteen thousand, three hundred forty-nine".