1166333461 has 4 divisors (see below), whose sum is σ = 1166404300. Its totient is φ = 1166262624.

The previous prime is 1166333453. The next prime is 1166333537. The reversal of 1166333461 is 1643336611.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 370755025 + 795578436 = 19255^2 + 28206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166333461 - 2³ = 1166333453 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 (1166333261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625 + ... + 48433.

It is an arithmetic number, because the mean of its divisors is an integer number (291601075).

Almost surely, 2^1166333461 is an apocalyptic number.

It is an amenable number.

1166333461 is a deficient number, since it is larger than the sum of its proper divisors (70839).

1166333461 is an equidigital number, since it uses as much as digits as its factorization.

1166333461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70838.

The product of its digits is 23328, while the sum is 34.

The square root of 1166333461 is about 34151.6245733640. The cubic root of 1166333461 is about 1052.6263687900.

The spelling of 1166333461 in words is "one billion, one hundred sixty-six million, three hundred thirty-three thousand, four hundred sixty-one".