65512565937 has 32 divisors (see below), whose sum is σ = 119453116160. Its totient is φ = 34556077440.

The previous prime is 65512565927. The next prime is 65512565939. The reversal of 65512565937 is 73956521556.

65512565937 is a `hidden beast` number, since 6 + 551 + 2 + 5 + 6 + 59 + 37 = 666.

65512565937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65512565937 - 2⁶ = 65512565873 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65512565939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13329364 + ... + 13334277.

It is an arithmetic number, because the mean of its divisors is an integer number (3732909880).

Almost surely, 2^65512565937 is an apocalyptic number.

It is an amenable number.

65512565937 is a deficient number, since it is larger than the sum of its proper divisors (53940550223).

65512565937 is a wasteful number, since it uses less digits than its factorization.

65512565937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26663670 (or 26663664 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 54.

The spelling of 65512565937 in words is "sixty-five billion, five hundred twelve million, five hundred sixty-five thousand, nine hundred thirty-seven".