65710564812 has 36 divisors (see below), whose sum is σ = 167096341776. Its totient is φ = 21772360800.

The previous prime is 65710564811. The next prime is 65710564819. The reversal of 65710564812 is 21846501756.

65710564812 is a `hidden beast` number, since 6 + 5 + 7 + 1 + 0 + 564 + 81 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (65710564811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5458939 + ... + 5470962.

Almost surely, 2^65710564812 is an apocalyptic number.

It is an amenable number.

65710564812 is an abundant number, since it is smaller than the sum of its proper divisors (101385776964).

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

65710564812 is a wasteful number, since it uses less digits than its factorization.

65710564812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10930078 (or 10930073 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 65710564812 in words is "sixty-five billion, seven hundred ten million, five hundred sixty-four thousand, eight hundred twelve".