65555646716 has 12 divisors (see below), whose sum is σ = 131111293488. Its totient is φ = 28095277152.

The previous prime is 65555646701. The next prime is 65555646719. The reversal of 65555646716 is 61764655556.

It is a happy number.

65555646716 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65555646719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170636521 + ... + 1170636576.

It is an arithmetic number, because the mean of its divisors is an integer number (10925941124).

Almost surely, 2^65555646716 is an apocalyptic number.

It is an amenable number.

65555646716 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65555646716 is a wasteful number, since it uses less digits than its factorization.

65555646716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341273108 (or 2341273106 counting only the distinct ones).

The product of its digits is 22680000, while the sum is 56.

The spelling of 65555646716 in words is "sixty-five billion, five hundred fifty-five million, six hundred forty-six thousand, seven hundred sixteen".