65217512342363 has 4 divisors (see below), whose sum is σ = 65368829076768. Its totient is φ = 65066195607960.

The previous prime is 65217512342239. The next prime is 65217512342399. The reversal of 65217512342363 is 36324321571256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65217512342363 - 2⁸ = 65217512342107 is a prime.

It is a super-2 number, since 2×65217512342363² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65217512342063) 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, 75658366556 + ... + 75658367417.

It is an arithmetic number, because the mean of its divisors is an integer number (16342207269192).

Almost surely, 2^{65217512342363} is an apocalyptic number.

65217512342363 is a deficient number, since it is larger than the sum of its proper divisors (151316734405).

65217512342363 is a wasteful number, since it uses less digits than its factorization.

65217512342363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151316734404.

The product of its digits is 5443200, while the sum is 50.

The spelling of 65217512342363 in words is "sixty-five trillion, two hundred seventeen billion, five hundred twelve million, three hundred forty-two thousand, three hundred sixty-three".