65217005616515 has 8 divisors (see below), whose sum is σ = 79543364227728. Its totient is φ = 51318299501280.

The previous prime is 65217005616461. The next prime is 65217005616563. The reversal of 65217005616515 is 51561650071256.

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

It is not a de Polignac number, because 65217005616515 - 2¹⁶ = 65217005550979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106913123657 + ... + 106913124266.

It is an arithmetic number, because the mean of its divisors is an integer number (9942920528466).

Almost surely, 2^{65217005616515} is an apocalyptic number.

65217005616515 is a deficient number, since it is larger than the sum of its proper divisors (14326358611213).

65217005616515 is a wasteful number, since it uses less digits than its factorization.

65217005616515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213826247989.

The product of its (nonzero) digits is 1890000, while the sum is 50.

The spelling of 65217005616515 in words is "sixty-five trillion, two hundred seventeen billion, five million, six hundred sixteen thousand, five hundred fifteen".