65658728718011 has 64 divisors (see below), whose sum is σ = 82489982916096. Its totient is φ = 51340337817600.

The previous prime is 65658728718001. The next prime is 65658728718019. The reversal of 65658728718011 is 11081782785656.

It is not a de Polignac number, because 65658728718011 - 2¹⁴ = 65658728701627 is a prime.

It is a super-2 number, since 2×65658728718011² (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 (65658728718019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 419490476 + ... + 419646966.

It is an arithmetic number, because the mean of its divisors is an integer number (1288905983064).

Almost surely, 2^{65658728718011} is an apocalyptic number.

65658728718011 is a deficient number, since it is larger than the sum of its proper divisors (16831254198085).

65658728718011 is a wasteful number, since it uses less digits than its factorization.

65658728718011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158252.

The product of its (nonzero) digits is 45158400, while the sum is 65.

The spelling of 65658728718011 in words is "sixty-five trillion, six hundred fifty-eight billion, seven hundred twenty-eight million, seven hundred eighteen thousand, eleven".