65688057673 has 16 divisors (see below), whose sum is σ = 77715072000. Its totient is φ = 54324510912.

The previous prime is 65688057671. The next prime is 65688057683. The reversal of 65688057673 is 37675088656.

65688057673 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 65688057673 - 2¹ = 65688057671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65688057671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179683 + ... + 404551.

It is an arithmetic number, because the mean of its divisors is an integer number (4857192000).

Almost surely, 2^65688057673 is an apocalyptic number.

It is an amenable number.

65688057673 is a deficient number, since it is larger than the sum of its proper divisors (12027014327).

65688057673 is a wasteful number, since it uses less digits than its factorization.

65688057673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226344.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 65688057673 in words is "sixty-five billion, six hundred eighty-eight million, fifty-seven thousand, six hundred seventy-three".