6506561152 has 64 divisors (see below), whose sum is σ = 15953616000. Its totient is φ = 2574019584.

The previous prime is 6506561129. The next prime is 6506561167. The reversal of 6506561152 is 2511656056.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267652 + ... + 290947.

It is an arithmetic number, because the mean of its divisors is an integer number (249275250).

Almost surely, 2^6506561152 is an apocalyptic number.

It is an amenable number.

6506561152 is an abundant number, since it is smaller than the sum of its proper divisors (9447054848).

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

6506561152 is a wasteful number, since it uses less digits than its factorization.

6506561152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558633 (or 558621 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 6506561152 is about 80663.2577571722. The cubic root of 6506561152 is about 1866.8833050155.

The spelling of 6506561152 in words is "six billion, five hundred six million, five hundred sixty-one thousand, one hundred fifty-two".