1166601013 has 8 divisors (see below), whose sum is σ = 1243517400. Its totient is φ = 1090606080.

The previous prime is 1166601011. The next prime is 1166601017. The reversal of 1166601013 is 3101066611.

It can be written as a sum of positive squares in 4 ways, for example, as 38850289 + 1127750724 = 6233^2 + 33582^2 .

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 1166601013 - 2¹ = 1166601011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166601011) 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, 227748 + ... + 232813.

It is an arithmetic number, because the mean of its divisors is an integer number (155439675).

Almost surely, 2^1166601013 is an apocalyptic number.

It is an amenable number.

1166601013 is a deficient number, since it is larger than the sum of its proper divisors (76916387).

1166601013 is a wasteful number, since it uses less digits than its factorization.

1166601013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460727.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1166601013 is about 34155.5414684060. The cubic root of 1166601013 is about 1052.7068519929.

Adding to 1166601013 its reverse (3101066611), we get a palindrome (4267667624).

The spelling of 1166601013 in words is "one billion, one hundred sixty-six million, six hundred one thousand, thirteen".