65025712616 has 8 divisors (see below), whose sum is σ = 121923211170. Its totient is φ = 32512856304.

The previous prime is 65025712573. The next prime is 65025712649. The reversal of 65025712616 is 61621752056.

It can be written as a sum of positive squares in only one way, i.e., 64895524516 + 130188100 = 254746^2 + 11410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4064107031 + ... + 4064107046.

Almost surely, 2^65025712616 is an apocalyptic number.

It is an amenable number.

65025712616 is a deficient number, since it is larger than the sum of its proper divisors (56897498554).

65025712616 is a wasteful number, since it uses less digits than its factorization.

65025712616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128214083 (or 8128214079 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 65025712616 in words is "sixty-five billion, twenty-five million, seven hundred twelve thousand, six hundred sixteen".