27432660564 has 36 divisors (see below), whose sum is σ = 69360520320. Its totient is φ = 9141998160.

The previous prime is 27432660559. The next prime is 27432660581. The reversal of 27432660564 is 46506623472.

27432660564 is a `hidden beast` number, since 2 + 7 + 4 + 3 + 26 + 60 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 61117 + ... + 242075.

It is an arithmetic number, because the mean of its divisors is an integer number (1926681120).

Almost surely, 2^27432660564 is an apocalyptic number.

It is an amenable number.

27432660564 is an abundant number, since it is smaller than the sum of its proper divisors (41927859756).

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

27432660564 is a wasteful number, since it uses less digits than its factorization.

27432660564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185180 (or 185175 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 27432660564 in words is "twenty-seven billion, four hundred thirty-two million, six hundred sixty thousand, five hundred sixty-four".