66001006111 has 2 divisors, whose sum is σ = 66001006112. Its totient is φ = 66001006110.

The previous prime is 66001006079. The next prime is 66001006133. The reversal of 66001006111 is 11160010066.

It is an a-pointer prime, because the next prime (66001006133) can be obtained adding 66001006111 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66001006111 - 2⁵ = 66001006079 is a prime.

It is a super-2 number, since 2×66001006111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66001006151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33000503055 + 33000503056.

It is an arithmetic number, because the mean of its divisors is an integer number (33000503056).

Almost surely, 2^66001006111 is an apocalyptic number.

66001006111 is a deficient number, since it is larger than the sum of its proper divisors (1).

66001006111 is an equidigital number, since it uses as much as digits as its factorization.

66001006111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 66001006111 its reverse (11160010066), we get a palindrome (77161016177).

The spelling of 66001006111 in words is "sixty-six billion, one million, six thousand, one hundred eleven".