65216041017 has 4 divisors (see below), whose sum is σ = 86954721360. Its totient is φ = 43477360676.

The previous prime is 65216040983. The next prime is 65216041057. The reversal of 65216041017 is 71014061256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65216041017 - 2¹¹ = 65216038969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65216041057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10869340167 + ... + 10869340172.

It is an arithmetic number, because the mean of its divisors is an integer number (21738680340).

Almost surely, 2^65216041017 is an apocalyptic number.

It is an amenable number.

65216041017 is a deficient number, since it is larger than the sum of its proper divisors (21738680343).

65216041017 is a wasteful number, since it uses less digits than its factorization.

65216041017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21738680342.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 65216041017 in words is "sixty-five billion, two hundred sixteen million, forty-one thousand, seventeen".