65127887556 has 12 divisors (see below), whose sum is σ = 151965070992. Its totient is φ = 21709295848.

The previous prime is 65127887527. The next prime is 65127887563. The reversal of 65127887556 is 65578872156.

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

It is a self number, because there is not a number n which added to its sum of digits gives 65127887556.

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, 2713661970 + ... + 2713661993.

It is an arithmetic number, because the mean of its divisors is an integer number (12663755916).

Almost surely, 2^65127887556 is an apocalyptic number.

It is an amenable number.

65127887556 is an abundant number, since it is smaller than the sum of its proper divisors (86837183436).

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

65127887556 is a wasteful number, since it uses less digits than its factorization.

65127887556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427323970 (or 5427323968 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 60.

The spelling of 65127887556 in words is "sixty-five billion, one hundred twenty-seven million, eight hundred eighty-seven thousand, five hundred fifty-six".