1066040033 has 4 divisors (see below), whose sum is σ = 1066140180. Its totient is φ = 1065939888.

The previous prime is 1066040021. The next prime is 1066040069. The reversal of 1066040033 is 3300406601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3300406601 = 197 ⋅16753333.

It can be written as a sum of positive squares in 2 ways, for example, as 974875729 + 91164304 = 31223^2 + 9548^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066040033 - 2⁶ = 1066039969 is a prime.

It is a super-2 number, since 2×1066040033² = 2272882703917282178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1066039990 and 1066040008.

It is not an unprimeable number, because it can be changed into a prime (1066040083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31910 + ... + 56127.

It is an arithmetic number, because the mean of its divisors is an integer number (266535045).

Almost surely, 2^1066040033 is an apocalyptic number.

It is an amenable number.

1066040033 is a deficient number, since it is larger than the sum of its proper divisors (100147).

1066040033 is an equidigital number, since it uses as much as digits as its factorization.

1066040033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100146.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1066040033 is about 32650.2684981303. The cubic root of 1066040033 is about 1021.5457892941.

Adding to 1066040033 its reverse (3300406601), we get a palindrome (4366446634).

The spelling of 1066040033 in words is "one billion, sixty-six million, forty thousand, thirty-three".