66000011 has 12 divisors (see below), whose sum is σ = 83755800. Its totient is φ = 51428160.

The previous prime is 66000007. The next prime is 66000013. The reversal of 66000011 is 11000066.

It is not a de Polignac number, because 66000011 - 2² = 66000007 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 66000011.

It is not an unprimeable number, because it can be changed into a prime (66000013) 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, 60686 + ... + 61763.

It is an arithmetic number, because the mean of its divisors is an integer number (6979650).

Almost surely, 2^66000011 is an apocalyptic number.

66000011 is a deficient number, since it is larger than the sum of its proper divisors (17755789).

66000011 is a wasteful number, since it uses less digits than its factorization.

66000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122474 (or 122467 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 66000011 is about 8124.0390816391. The cubic root of 66000011 is about 404.1240245136.

Adding to 66000011 its reverse (11000066), we get a palindrome (77000077).

Subtracting from 66000011 its reverse (11000066), we obtain a palindrome (54999945).

The spelling of 66000011 in words is "sixty-six million, eleven", and thus it is an aban number and an uban number.