65712556316655 has 48 divisors (see below), whose sum is σ = 120925197993600. Its totient is φ = 32896694191104.

The previous prime is 65712556316651. The next prime is 65712556316731. The reversal of 65712556316655 is 55661365521756.

65712556316655 is a `hidden beast` number, since 6 + 5 + 7 + 1 + 2 + 5 + 563 + 1 + 6 + 65 + 5 = 666.

It is not a de Polignac number, because 65712556316655 - 2² = 65712556316651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65712556316592 and 65712556316601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65712556316651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114860455 + ... + 115431144.

It is an arithmetic number, because the mean of its divisors is an integer number (2519274958200).

Almost surely, 2^{65712556316655} is an apocalyptic number.

65712556316655 is a deficient number, since it is larger than the sum of its proper divisors (55212641676945).

65712556316655 is a wasteful number, since it uses less digits than its factorization.

65712556316655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230292000 (or 230291997 counting only the distinct ones).

The product of its digits is 170100000, while the sum is 63.

The spelling of 65712556316655 in words is "sixty-five trillion, seven hundred twelve billion, five hundred fifty-six million, three hundred sixteen thousand, six hundred fifty-five".