1543442323163 has 16 divisors (see below), whose sum is σ = 1698939809280. Its totient is φ = 1393534954656.

The previous prime is 1543442323133. The next prime is 1543442323327. The reversal of 1543442323163 is 3613232443451.

It is not a de Polignac number, because 1543442323163 - 2¹⁰ = 1543442322139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1543442323163.

It is not an unprimeable number, because it can be changed into a prime (1543442323133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6912845 + ... + 7132622.

It is an arithmetic number, because the mean of its divisors is an integer number (106183738080).

Almost surely, 2^{1543442323163} is an apocalyptic number.

1543442323163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1543442323163 is a deficient number, since it is larger than the sum of its proper divisors (155497486117).

1543442323163 is a wasteful number, since it uses less digits than its factorization.

1543442323163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14045666.

The product of its digits is 622080, while the sum is 41.

The spelling of 1543442323163 in words is "one trillion, five hundred forty-three billion, four hundred forty-two million, three hundred twenty-three thousand, one hundred sixty-three".