1066066111 has 4 divisors (see below), whose sum is σ = 1162981224. Its totient is φ = 969151000.

The previous prime is 1066066109. The next prime is 1066066139. The reversal of 1066066111 is 1116606601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1066066111 - 2¹ = 1066066109 is a prime.

It is a super-2 number, since 2×1066066111² = 2272993906045328642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066066111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066060111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48457540 + ... + 48457561.

It is an arithmetic number, because the mean of its divisors is an integer number (290745306).

Almost surely, 2^1066066111 is an apocalyptic number.

1066066111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1066066111 is a deficient number, since it is larger than the sum of its proper divisors (96915113).

1066066111 is an equidigital number, since it uses as much as digits as its factorization.

1066066111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96915112.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1066066111 is about 32650.6678492186. The cubic root of 1066066111 is about 1021.5541190795.

The spelling of 1066066111 in words is "one billion, sixty-six million, sixty-six thousand, one hundred eleven".