66085328111 has 16 divisors (see below), whose sum is σ = 74160576000. Its totient is φ = 58366929600.

The previous prime is 66085328053. The next prime is 66085328119. The reversal of 66085328111 is 11182358066.

It is a cyclic number.

It is not a de Polignac number, because 66085328111 - 2⁶ = 66085328047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66085328119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198761 + ... + 414338.

It is an arithmetic number, because the mean of its divisors is an integer number (4635036000).

Almost surely, 2^66085328111 is an apocalyptic number.

66085328111 is a deficient number, since it is larger than the sum of its proper divisors (8075247889).

66085328111 is a wasteful number, since it uses less digits than its factorization.

66085328111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613390.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 66085328111 in words is "sixty-six billion, eighty-five million, three hundred twenty-eight thousand, one hundred eleven".