6466424543 has 4 divisors (see below), whose sum is σ = 6466586208. Its totient is φ = 6466262880.

The previous prime is 6466424537. The next prime is 6466424551. The reversal of 6466424543 is 3454246646.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3454246646 = 2 ⋅1727123323.

It is a cyclic number.

It is not a de Polignac number, because 6466424543 - 2⁶ = 6466424479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6466424494 and 6466424503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466421543) 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, 28103 + ... + 117143.

It is an arithmetic number, because the mean of its divisors is an integer number (1616646552).

Almost surely, 2^6466424543 is an apocalyptic number.

6466424543 is a deficient number, since it is larger than the sum of its proper divisors (161665).

6466424543 is an equidigital number, since it uses as much as digits as its factorization.

6466424543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161664.

The product of its digits is 1658880, while the sum is 44.

The square root of 6466424543 is about 80414.0817456744. The cubic root of 6466424543 is about 1863.0366766445.

The spelling of 6466424543 in words is "six billion, four hundred sixty-six million, four hundred twenty-four thousand, five hundred forty-three".