6543230396556 has 192 divisors, whose sum is σ = 18686329159680. Its totient is φ = 1741761342720.

The previous prime is 6543230396539. The next prime is 6543230396557. The reversal of 6543230396556 is 6556930323456.

It is a super-2 number, since 2×6543230396556² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6543230396496 and 6543230396505.

It is not an unprimeable number, because it can be changed into a prime (6543230396557) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26079201 + ... + 26328903.

It is an arithmetic number, because the mean of its divisors is an integer number (97324631040).

Almost surely, 2^{6543230396556} 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 6543230396556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9343164579840).

6543230396556 is an abundant number, since it is smaller than the sum of its proper divisors (12143098763124).

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

6543230396556 is a wasteful number, since it uses less digits than its factorization.

6543230396556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250124 (or 250122 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 57.

The spelling of 6543230396556 in words is "six trillion, five hundred forty-three billion, two hundred thirty million, three hundred ninety-six thousand, five hundred fifty-six".