1173384666 has 24 divisors (see below), whose sum is σ = 2543932404. Its totient is φ = 390882240.

The previous prime is 1173384661. The next prime is 1173384671. The reversal of 1173384666 is 6664833711.

It is an interprime number because it is at equal distance from previous prime (1173384661) and next prime (1173384671).

It can be written as a sum of positive squares in 2 ways, for example, as 1010286225 + 163098441 = 31785^2 + 12771^2 .

It is not an unprimeable number, because it can be changed into a prime (1173384661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10156 + ... + 49496.

Almost surely, 2^1173384666 is an apocalyptic number.

1173384666 is an abundant number, since it is smaller than the sum of its proper divisors (1370547738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1173384666 is a wasteful number, since it uses less digits than its factorization.

1173384666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41006 (or 41003 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1173384666 is about 34254.7028304144. The cubic root of 1173384666 is about 1054.7433668211.

The spelling of 1173384666 in words is "one billion, one hundred seventy-three million, three hundred eighty-four thousand, six hundred sixty-six".