1166305503 has 8 divisors (see below), whose sum is σ = 1696444416. Its totient is φ = 706851800.

The previous prime is 1166305489. The next prime is 1166305507. The reversal of 1166305503 is 3055036611.

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 1166305503 - 2⁴ = 1166305487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166305507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17671263 + ... + 17671328.

It is an arithmetic number, because the mean of its divisors is an integer number (212055552).

Almost surely, 2^1166305503 is an apocalyptic number.

1166305503 is a deficient number, since it is larger than the sum of its proper divisors (530138913).

1166305503 is a wasteful number, since it uses less digits than its factorization.

1166305503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35342605.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 1166305503 is about 34151.2152492411. The cubic root of 1166305503 is about 1052.6179579412.

The spelling of 1166305503 in words is "one billion, one hundred sixty-six million, three hundred five thousand, five hundred three".