654043005543 has 8 divisors (see below), whose sum is σ = 872061781248. Its totient is φ = 436026450104.

The previous prime is 654043005521. The next prime is 654043005547. The reversal of 654043005543 is 345500340456.

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 654043005543 - 2¹⁶ = 654042940007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654043005547) 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, 337180 + ... + 1192382.

It is an arithmetic number, because the mean of its divisors is an integer number (109007722656).

Almost surely, 2^654043005543 is an apocalyptic number.

654043005543 is a deficient number, since it is larger than the sum of its proper divisors (218018775705).

654043005543 is a wasteful number, since it uses less digits than its factorization.

654043005543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110133.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 654043005543 its reverse (345500340456), we get a palindrome (999543345999).

The spelling of 654043005543 in words is "six hundred fifty-four billion, forty-three million, five thousand, five hundred forty-three".