1166602003 has 16 divisors (see below), whose sum is σ = 1357056000. Its totient is φ = 982144800.

The previous prime is 1166601967. The next prime is 1166602009. The reversal of 1166602003 is 3002066611.

It is not a de Polignac number, because 1166602003 - 2¹⁷ = 1166470931 is a prime.

It is a super-2 number, since 2×1166602003² = 2721920466807224018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166602009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387498 + ... + 390496.

It is an arithmetic number, because the mean of its divisors is an integer number (84816000).

Almost surely, 2^1166602003 is an apocalyptic number.

1166602003 is a deficient number, since it is larger than the sum of its proper divisors (190453997).

1166602003 is an equidigital number, since it uses as much as digits as its factorization.

1166602003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1166602003 is about 34155.5559609268. Note that the first 3 decimals coincide. The cubic root of 1166602003 is about 1052.7071497752.

Adding to 1166602003 its reverse (3002066611), we get a palindrome (4168668614).

The spelling of 1166602003 in words is "one billion, one hundred sixty-six million, six hundred two thousand, three".