1166332513 has 4 divisors (see below), whose sum is σ = 1166438340. Its totient is φ = 1166226688.

The previous prime is 1166332511. The next prime is 1166332543. The reversal of 1166332513 is 3152336611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 454883584 + 711448929 = 21328^2 + 26673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166332513 - 2¹ = 1166332511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166332511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34168 + ... + 59161.

It is an arithmetic number, because the mean of its divisors is an integer number (291609585).

Almost surely, 2^1166332513 is an apocalyptic number.

It is an amenable number.

1166332513 is a deficient number, since it is larger than the sum of its proper divisors (105827).

1166332513 is an equidigital number, since it uses as much as digits as its factorization.

1166332513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105826.

The product of its digits is 9720, while the sum is 31.

The square root of 1166332513 is about 34151.6106940800. The cubic root of 1166332513 is about 1052.6260835971.

The spelling of 1166332513 in words is "one billion, one hundred sixty-six million, three hundred thirty-two thousand, five hundred thirteen".