6545785606272 has 512 divisors, whose sum is σ = 21605460480000. Its totient is φ = 1934008750080.

The previous prime is 6545785606253. The next prime is 6545785606273. The reversal of 6545785606272 is 2726065875456.

6545785606272 is a `hidden beast` number, since 6 + 5 + 4 + 5 + 7 + 8 + 560 + 62 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (6545785606273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 480629479 + ... + 480643097.

It is an arithmetic number, because the mean of its divisors is an integer number (42198165000).

Almost surely, 2^{6545785606272} 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 6545785606272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10802730240000).

6545785606272 is an abundant number, since it is smaller than the sum of its proper divisors (15059674873728).

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

6545785606272 is a wasteful number, since it uses less digits than its factorization.

6545785606272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13969 (or 13951 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 63.

The spelling of 6545785606272 in words is "six trillion, five hundred forty-five billion, seven hundred eighty-five million, six hundred six thousand, two hundred seventy-two".