66016110511 has 16 divisors (see below), whose sum is σ = 73232583424. Its totient is φ = 59114893824.

The previous prime is 66016110499. The next prime is 66016110529. The reversal of 66016110511 is 11501161066.

It is a cyclic number.

It is not a de Polignac number, because 66016110511 - 2¹⁹ = 66015586223 is a prime.

It is a super-2 number, since 2×66016110511² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66016110511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66016110541) 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, 41535 + ... + 365728.

It is an arithmetic number, because the mean of its divisors is an integer number (4577036464).

Almost surely, 2^66016110511 is an apocalyptic number.

66016110511 is a deficient number, since it is larger than the sum of its proper divisors (7216472913).

66016110511 is a wasteful number, since it uses less digits than its factorization.

66016110511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407650.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 66016110511 its reverse (11501161066), we get a palindrome (77517271577).

The spelling of 66016110511 in words is "sixty-six billion, sixteen million, one hundred ten thousand, five hundred eleven".