19732066543 has 6 divisors (see below), whose sum is σ = 22551357944. Its totient is φ = 16912881336.

The previous prime is 19732066537. The next prime is 19732066631. The reversal of 19732066543 is 34566023791.

It is not a de Polignac number, because 19732066543 - 2⁹ = 19732066031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19732066493 and 19732066502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19732067543) 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 5 ways as a sum of consecutive naturals, for example, 345105 + ... + 398197.

Almost surely, 2^19732066543 is an apocalyptic number.

19732066543 is a deficient number, since it is larger than the sum of its proper divisors (2819291401).

19732066543 is an frugal number, since it uses more digits than its factorization.

19732066543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106193 (or 53100 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 19732066543 in words is "nineteen billion, seven hundred thirty-two million, sixty-six thousand, five hundred forty-three".