1166833399 has 4 divisors (see below), whose sum is σ = 1167727464. Its totient is φ = 1165939336.

The previous prime is 1166833379. The next prime is 1166833433. The reversal of 1166833399 is 9933386611.

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 1166833399 - 2⁷ = 1166833271 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166833379) 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, 445072 + ... + 447685.

It is an arithmetic number, because the mean of its divisors is an integer number (291931866).

Almost surely, 2^1166833399 is an apocalyptic number.

1166833399 is a deficient number, since it is larger than the sum of its proper divisors (894065).

1166833399 is an equidigital number, since it uses as much as digits as its factorization.

1166833399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894064.

The product of its digits is 629856, while the sum is 49.

The square root of 1166833399 is about 34158.9431774462. The cubic root of 1166833399 is about 1052.7767468098.

The spelling of 1166833399 in words is "one billion, one hundred sixty-six million, eight hundred thirty-three thousand, three hundred ninety-nine".