6543584853455 has 8 divisors (see below), whose sum is σ = 8456325041472. Its totient is φ = 4832185737888.

The previous prime is 6543584853413. The next prime is 6543584853457. The reversal of 6543584853455 is 5543584853456.

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 6543584853455 - 2¹² = 6543584849359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65), and also a Moran number because the ratio is a prime number: 100670536207 = 6543584853455 / (6 + 5 + 4 + 3 + 5 + 8 + 4 + 8 + 5 + 3 + 4 + 5 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6543584853391 and 6543584853400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543584853457) 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, 50335268039 + ... + 50335268168.

It is an arithmetic number, because the mean of its divisors is an integer number (1057040630184).

Almost surely, 2^{6543584853455} is an apocalyptic number.

6543584853455 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6543584853455 is a deficient number, since it is larger than the sum of its proper divisors (1912740188017).

6543584853455 is a wasteful number, since it uses less digits than its factorization.

6543584853455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100670536225.

The product of its digits is 691200000, while the sum is 65.

Subtracting from 6543584853455 its reverse (5543584853456), we obtain a palindrome (999999999999).

The spelling of 6543584853455 in words is "six trillion, five hundred forty-three billion, five hundred eighty-four million, eight hundred fifty-three thousand, four hundred fifty-five".