1166072005 has 8 divisors (see below), whose sum is σ = 1599184512. Its totient is φ = 799592208.

The previous prime is 1166071969. The next prime is 1166072023. The reversal of 1166072005 is 5002706611.

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 1166072005 - 2⁹ = 1166071493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16658137 + ... + 16658206.

It is an arithmetic number, because the mean of its divisors is an integer number (199898064).

Almost surely, 2^1166072005 is an apocalyptic number.

It is an amenable number.

1166072005 is a deficient number, since it is larger than the sum of its proper divisors (433112507).

1166072005 is an equidigital number, since it uses as much as digits as its factorization.

1166072005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33316355.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1166072005 is about 34147.7964882070. The cubic root of 1166072005 is about 1052.5477074532.

Adding to 1166072005 its reverse (5002706611), we get a palindrome (6168778616).

The spelling of 1166072005 in words is "one billion, one hundred sixty-six million, seventy-two thousand, five".