16343505143 has 4 divisors (see below), whose sum is σ = 18678291600. Its totient is φ = 14008718688.

The previous prime is 16343505137. The next prime is 16343505149. The reversal of 16343505143 is 34150534361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34150534361 = 233 ⋅146568817.

It is an interprime number because it is at equal distance from previous prime (16343505137) and next prime (16343505149).

It is a cyclic number.

It is not a de Polignac number, because 16343505143 - 2¹⁰ = 16343504119 is a prime.

It is a super-2 number, since 2×16343505143² (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 (16343505149) 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, 1167393218 + ... + 1167393231.

It is an arithmetic number, because the mean of its divisors is an integer number (4669572900).

Almost surely, 2^16343505143 is an apocalyptic number.

16343505143 is a deficient number, since it is larger than the sum of its proper divisors (2334786457).

16343505143 is an equidigital number, since it uses as much as digits as its factorization.

16343505143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334786456.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 16343505143 in words is "sixteen billion, three hundred forty-three million, five hundred five thousand, one hundred forty-three".