65117052220611 has 16 divisors (see below), whose sum is σ = 91441835654400. Its totient is φ = 41104292550048.

The previous prime is 65117052220543. The next prime is 65117052220673. The reversal of 65117052220611 is 11602225071156.

It is not a de Polignac number, because 65117052220611 - 2¹⁰ = 65117052219587 is a prime.

It is a super-3 number, since 3×65117052220611³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65117052220611.

It is not an unprimeable number, because it can be changed into a prime (65117052290611) 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, 309154176 + ... + 309364733.

It is an arithmetic number, because the mean of its divisors is an integer number (5715114728400).

Almost surely, 2^{65117052220611} is an apocalyptic number.

65117052220611 is a deficient number, since it is larger than the sum of its proper divisors (26324783433789).

65117052220611 is a wasteful number, since it uses less digits than its factorization.

65117052220611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618520778.

The product of its (nonzero) digits is 50400, while the sum is 39.

Adding to 65117052220611 its reverse (11602225071156), we get a palindrome (76719277291767).

The spelling of 65117052220611 in words is "sixty-five trillion, one hundred seventeen billion, fifty-two million, two hundred twenty thousand, six hundred eleven".