64530065532 has 12 divisors (see below), whose sum is σ = 150570152936. Its totient is φ = 21510021840.

The previous prime is 64530065521. The next prime is 64530065581. The reversal of 64530065532 is 23556003546.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2688752719 + ... + 2688752742.

Almost surely, 2^64530065532 is an apocalyptic number.

It is an amenable number.

64530065532 is an abundant number, since it is smaller than the sum of its proper divisors (86040087404).

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

64530065532 is a wasteful number, since it uses less digits than its factorization.

64530065532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377505468 (or 5377505466 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 64530065532 in words is "sixty-four billion, five hundred thirty million, sixty-five thousand, five hundred thirty-two".