16773440543 has 4 divisors (see below), whose sum is σ = 16800626640. Its totient is φ = 16746254448.

The previous prime is 16773440539. The next prime is 16773440573. The reversal of 16773440543 is 34504437761.

It is a happy number.

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 16773440543 - 2² = 16773440539 is a prime.

It is a super-2 number, since 2×16773440543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16773440494 and 16773440503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16773440503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13592123 + ... + 13593356.

It is an arithmetic number, because the mean of its divisors is an integer number (4200156660).

Almost surely, 2^16773440543 is an apocalyptic number.

16773440543 is a deficient number, since it is larger than the sum of its proper divisors (27186097).

16773440543 is an equidigital number, since it uses as much as digits as its factorization.

16773440543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27186096.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 16773440543 in words is "sixteen billion, seven hundred seventy-three million, four hundred forty thousand, five hundred forty-three".