1166840073 has 24 divisors (see below), whose sum is σ = 1997556288. Its totient is φ = 666764784.

The previous prime is 1166840069. The next prime is 1166840083. The reversal of 1166840073 is 3700486611.

It is not a de Polignac number, because 1166840073 - 2² = 1166840069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166840023) 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 23 ways as a sum of consecutive naturals, for example, 341286 + ... + 344687.

It is an arithmetic number, because the mean of its divisors is an integer number (83231512).

Almost surely, 2^1166840073 is an apocalyptic number.

It is an amenable number.

1166840073 is a deficient number, since it is larger than the sum of its proper divisors (830716215).

1166840073 is an frugal number, since it uses more digits than its factorization.

1166840073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685995 (or 685983 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1166840073 is about 34159.0408676825. The cubic root of 1166840073 is about 1052.7787540140.

The spelling of 1166840073 in words is "one billion, one hundred sixty-six million, eight hundred forty thousand, seventy-three".