66113235565011 has 12 divisors (see below), whose sum is σ = 95496975348840. Its totient is φ = 44075453669280.

The previous prime is 66113235565007. The next prime is 66113235565079. The reversal of 66113235565011 is 11056553231166.

66113235565011 is a `hidden beast` number, since 6 + 6 + 1 + 1 + 32 + 3 + 556 + 50 + 11 = 666.

It is not a de Polignac number, because 66113235565011 - 2² = 66113235565007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66113235565211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12528280 + ... + 17005418.

It is an arithmetic number, because the mean of its divisors is an integer number (7958081279070).

Almost surely, 2^{66113235565011} is an apocalyptic number.

66113235565011 is a deficient number, since it is larger than the sum of its proper divisors (29383739783829).

66113235565011 is a wasteful number, since it uses less digits than its factorization.

66113235565011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117906 (or 6117903 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

Adding to 66113235565011 its reverse (11056553231166), we get a palindrome (77169788796177).

The spelling of 66113235565011 in words is "sixty-six trillion, one hundred thirteen billion, two hundred thirty-five million, five hundred sixty-five thousand, eleven".