1166344217 has 8 divisors (see below), whose sum is σ = 1223707392. Its totient is φ = 1110214800.

The previous prime is 1166344183. The next prime is 1166344219. The reversal of 1166344217 is 7124436611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1166344217 - 2¹⁶ = 1166278681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166344219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306503 + ... + 310284.

It is an arithmetic number, because the mean of its divisors is an integer number (152963424).

Almost surely, 2^1166344217 is an apocalyptic number.

It is an amenable number.

1166344217 is a deficient number, since it is larger than the sum of its proper divisors (57363175).

1166344217 is an equidigital number, since it uses as much as digits as its factorization.

1166344217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616879.

The product of its digits is 24192, while the sum is 35.

The square root of 1166344217 is about 34151.7820472080. The cubic root of 1166344217 is about 1052.6296045754.

The spelling of 1166344217 in words is "one billion, one hundred sixty-six million, three hundred forty-four thousand, two hundred seventeen".