65238522671 has 8 divisors (see below), whose sum is σ = 74886764160. Its totient is φ = 55672394328.

The previous prime is 65238522659. The next prime is 65238522691. The reversal of 65238522671 is 17622583256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65238522671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65238522691) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 20526581 + ... + 20529758.

It is an arithmetic number, because the mean of its divisors is an integer number (9360845520).

Almost surely, 2^65238522671 is an apocalyptic number.

65238522671 is a deficient number, since it is larger than the sum of its proper divisors (9648241489).

65238522671 is a wasteful number, since it uses less digits than its factorization.

65238522671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41056573.

The product of its digits is 1209600, while the sum is 47.

The spelling of 65238522671 in words is "sixty-five billion, two hundred thirty-eight million, five hundred twenty-two thousand, six hundred seventy-one".