6543442443456 has 224 divisors, whose sum is σ = 19708639150080. Its totient is φ = 2127911565312.

The previous prime is 6543442443449. The next prime is 6543442443497.

6543442443456 is a `hidden beast` number, since 6 + 5 + 4 + 344 + 244 + 3 + 4 + 56 = 666.

6543442443456 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25291905 + ... + 25549311.

Almost surely, 2^{6543442443456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6543442443456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9854319575040).

6543442443456 is an abundant number, since it is smaller than the sum of its proper divisors (13165196706624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6543442443456 is a wasteful number, since it uses less digits than its factorization.

6543442443456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257788 (or 257772 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 54.

The spelling of 6543442443456 in words is "six trillion, five hundred forty-three billion, four hundred forty-two million, four hundred forty-three thousand, four hundred fifty-six".