64560757530 has 32 divisors (see below), whose sum is σ = 156686788800. Its totient is φ = 17022760832.

The previous prime is 64560757519. The next prime is 64560757537. The reversal of 64560757530 is 3575706546.

It is a self number, because there is not a number n which added to its sum of digits gives 64560757530.

It is not an unprimeable number, because it can be changed into a prime (64560757537) 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 15 ways as a sum of consecutive naturals, for example, 12087360 + ... + 12092699.

It is an arithmetic number, because the mean of its divisors is an integer number (4896462150).

Almost surely, 2^64560757530 is an apocalyptic number.

64560757530 is an abundant number, since it is smaller than the sum of its proper divisors (92126031270).

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

64560757530 is a wasteful number, since it uses less digits than its factorization.

64560757530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24180158.

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 64560757530 in words is "sixty-four billion, five hundred sixty million, seven hundred fifty-seven thousand, five hundred thirty".