1166022197 has 8 divisors (see below), whose sum is σ = 1248485400. Its totient is φ = 1085100544.

The previous prime is 1166022173. The next prime is 1166022199. The reversal of 1166022197 is 7912206611.

It can be written as a sum of positive squares in 4 ways, for example, as 260854801 + 905167396 = 16151^2 + 30086^2 .

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 1166022197 - 2¹⁰ = 1166021173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166022199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383822 + ... + 386847.

It is an arithmetic number, because the mean of its divisors is an integer number (156060675).

Almost surely, 2^1166022197 is an apocalyptic number.

1166022197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1166022197 is a deficient number, since it is larger than the sum of its proper divisors (82463203).

1166022197 is an equidigital number, since it uses as much as digits as its factorization.

1166022197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770775.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1166022197 is about 34147.0671800669. The cubic root of 1166022197 is about 1052.5327209451.

The spelling of 1166022197 in words is "one billion, one hundred sixty-six million, twenty-two thousand, one hundred ninety-seven".