1166347385 has 16 divisors (see below), whose sum is σ = 1600532352. Its totient is φ = 799296000.

The previous prime is 1166347381. The next prime is 1166347393. The reversal of 1166347385 is 5837436611.

It is not a de Polignac number, because 1166347385 - 2² = 1166347381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166347381) 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 15 ways as a sum of consecutive naturals, for example, 54185 + ... + 72585.

It is an arithmetic number, because the mean of its divisors is an integer number (100033272).

Almost surely, 2^1166347385 is an apocalyptic number.

It is an amenable number.

1166347385 is a deficient number, since it is larger than the sum of its proper divisors (434184967).

1166347385 is a wasteful number, since it uses less digits than its factorization.

1166347385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224.

The product of its digits is 362880, while the sum is 44.

The square root of 1166347385 is about 34151.8284283580. The cubic root of 1166347385 is about 1052.6305576181.

The spelling of 1166347385 in words is "one billion, one hundred sixty-six million, three hundred forty-seven thousand, three hundred eighty-five".