65220064552311 has 16 divisors (see below), whose sum is σ = 87935039157888. Its totient is φ = 42994068732000.

The previous prime is 65220064552301. The next prime is 65220064552369. The reversal of 65220064552311 is 11325546002256.

It is a de Polignac number, because none of the positive numbers 2^k-65220064552311 is a prime.

It is a super-2 number, since 2×65220064552311² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220064552301) 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, 187606165 + ... + 187953486.

It is an arithmetic number, because the mean of its divisors is an integer number (5495939947368).

Almost surely, 2^{65220064552311} is an apocalyptic number.

65220064552311 is a deficient number, since it is larger than the sum of its proper divisors (22714974605577).

65220064552311 is a wasteful number, since it uses less digits than its factorization.

65220064552311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375560302.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 65220064552311 in words is "sixty-five trillion, two hundred twenty billion, sixty-four million, five hundred fifty-two thousand, three hundred eleven".