1166506047 has 24 divisors (see below), whose sum is σ = 1972632480. Its totient is φ = 650315520.

The previous prime is 1166506043. The next prime is 1166506057. The reversal of 1166506047 is 7406056611.

It is not a de Polignac number, because 1166506047 - 2² = 1166506043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166506043) 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 23 ways as a sum of consecutive naturals, for example, 223222 + ... + 228387.

It is an arithmetic number, because the mean of its divisors is an integer number (82193020).

Almost surely, 2^1166506047 is an apocalyptic number.

1166506047 is a deficient number, since it is larger than the sum of its proper divisors (806126433).

1166506047 is a wasteful number, since it uses less digits than its factorization.

1166506047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451663 (or 451660 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1166506047 is about 34154.1512411010. The cubic root of 1166506047 is about 1052.6782863649.

The spelling of 1166506047 in words is "one billion, one hundred sixty-six million, five hundred six thousand, forty-seven".