1166344405 has 8 divisors (see below), whose sum is σ = 1412694432. Its totient is φ = 924354768.

The previous prime is 1166344379. The next prime is 1166344423. The reversal of 1166344405 is 5044436611.

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 1166344405 - 2²⁷ = 1032126677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1089507 + ... + 1090576.

It is an arithmetic number, because the mean of its divisors is an integer number (176586804).

Almost surely, 2^1166344405 is an apocalyptic number.

It is an amenable number.

1166344405 is a deficient number, since it is larger than the sum of its proper divisors (246350027).

1166344405 is a wasteful number, since it uses less digits than its factorization.

1166344405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180195.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1166344405 is about 34151.7847996265. The cubic root of 1166344405 is about 1052.6296611323.

The spelling of 1166344405 in words is "one billion, one hundred sixty-six million, three hundred forty-four thousand, four hundred five".