1066641233 has 4 divisors (see below), whose sum is σ = 1219018560. Its totient is φ = 914263908.

The previous prime is 1066641229. The next prime is 1066641253. The reversal of 1066641233 is 3321466601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3321466601 = 1511 ⋅2198191.

It is a cyclic number.

It is not a de Polignac number, because 1066641233 - 2² = 1066641229 is a prime.

It is a super-2 number, since 2×1066641233² = 2275447039871520578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066641233.

It is not an unprimeable number, because it can be changed into a prime (1066641203) 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, 76188653 + ... + 76188666.

It is an arithmetic number, because the mean of its divisors is an integer number (304754640).

Almost surely, 2^1066641233 is an apocalyptic number.

It is an amenable number.

1066641233 is a deficient number, since it is larger than the sum of its proper divisors (152377327).

1066641233 is an equidigital number, since it uses as much as digits as its factorization.

1066641233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152377326.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1066641233 is about 32659.4738628778. The cubic root of 1066641233 is about 1021.7377889357.

The spelling of 1066641233 in words is "one billion, sixty-six million, six hundred forty-one thousand, two hundred thirty-three".