65730532564 has 12 divisors (see below), whose sum is σ = 115045226100. Its totient is φ = 32860467968.

The previous prime is 65730532537. The next prime is 65730532627. The reversal of 65730532564 is 46523503756.

It can be written as a sum of positive squares in 2 ways, for example, as 11557970064 + 54172562500 = 107508^2 + 232750^2 .

It is a super-2 number, since 2×65730532564² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1168669 + ... + 1223620.

It is an arithmetic number, because the mean of its divisors is an integer number (9587102175).

Almost surely, 2^65730532564 is an apocalyptic number.

It is an amenable number.

65730532564 is a deficient number, since it is larger than the sum of its proper divisors (49314693536).

65730532564 is a wasteful number, since it uses less digits than its factorization.

65730532564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399162 (or 2399160 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 46.

The spelling of 65730532564 in words is "sixty-five billion, seven hundred thirty million, five hundred thirty-two thousand, five hundred sixty-four".