6545872736832 has 448 divisors, whose sum is σ = 21595254589440. Its totient is φ = 1734627502080.

The previous prime is 6545872736749. The next prime is 6545872736929. The reversal of 6545872736832 is 2386372785456.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63069493 + ... + 63173195.

It is an arithmetic number, because the mean of its divisors is an integer number (48203693280).

Almost surely, 2^{6545872736832} 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 6545872736832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10797627294720).

6545872736832 is an abundant number, since it is smaller than the sum of its proper divisors (15049381852608).

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

6545872736832 is a wasteful number, since it uses less digits than its factorization.

6545872736832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103783 (or 103751 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 66.

The spelling of 6545872736832 in words is "six trillion, five hundred forty-five billion, eight hundred seventy-two million, seven hundred thirty-six thousand, eight hundred thirty-two".