6541572766432 has 96 divisors (see below), whose sum is σ = 14161917329280. Its totient is φ = 2949714593280.

The previous prime is 6541572766423. The next prime is 6541572766441. The reversal of 6541572766432 is 2346672751456.

It is an interprime number because it is at equal distance from previous prime (6541572766423) and next prime (6541572766441).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34112803 + ... + 34304029.

It is an arithmetic number, because the mean of its divisors is an integer number (147519972180).

Almost surely, 2^{6541572766432} 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 6541572766432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7080958664640).

6541572766432 is an abundant number, since it is smaller than the sum of its proper divisors (7620344562848).

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

6541572766432 is a wasteful number, since it uses less digits than its factorization.

6541572766432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192024 (or 192016 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 58.

The spelling of 6541572766432 in words is "six trillion, five hundred forty-one billion, five hundred seventy-two million, seven hundred sixty-six thousand, four hundred thirty-two".