65127887568 has 160 divisors (see below), whose sum is σ = 190536316800. Its totient is φ = 21293798400.

The previous prime is 65127887563. The next prime is 65127887579. The reversal of 65127887568 is 86578872156.

65127887568 is a `hidden beast` number, since 65 + 1 + 2 + 7 + 8 + 8 + 7 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65127887563) 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 31 ways as a sum of consecutive naturals, for example, 9984148 + ... + 9990668.

It is an arithmetic number, because the mean of its divisors is an integer number (1190851980).

Almost surely, 2^65127887568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65127887568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95268158400).

65127887568 is an abundant number, since it is smaller than the sum of its proper divisors (125408429232).

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

65127887568 is a wasteful number, since it uses less digits than its factorization.

65127887568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978 (or 6966 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

The spelling of 65127887568 in words is "sixty-five billion, one hundred twenty-seven million, eight hundred eighty-seven thousand, five hundred sixty-eight".