27165312664 has 24 divisors (see below), whose sum is σ = 59250874140. Its totient is φ = 11642276688.

The previous prime is 27165312659. The next prime is 27165312751. The reversal of 27165312664 is 46621356172.

It is a self number, because there is not a number n which added to its sum of digits gives 27165312664.

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 5 ways as a sum of consecutive naturals, for example, 34649242 + ... + 34650025.

Almost surely, 2^27165312664 is an apocalyptic number.

It is an amenable number.

27165312664 is an abundant number, since it is smaller than the sum of its proper divisors (32085561476).

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

27165312664 is a wasteful number, since it uses less digits than its factorization.

27165312664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69299287 (or 69299276 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The spelling of 27165312664 in words is "twenty-seven billion, one hundred sixty-five million, three hundred twelve thousand, six hundred sixty-four".