11666730013 has 4 divisors (see below), whose sum is σ = 12173979168. Its totient is φ = 11159480860.

The previous prime is 11666729983. The next prime is 11666730041. The reversal of 11666730013 is 31003766611.

11666730013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31003766611 = 2239 ⋅13847149.

It is not a de Polignac number, because 11666730013 - 2¹³ = 11666721821 is a prime.

It is a super-2 number, since 2×11666730013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666730083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253624543 + ... + 253624588.

It is an arithmetic number, because the mean of its divisors is an integer number (3043494792).

Almost surely, 2^11666730013 is an apocalyptic number.

It is an amenable number.

11666730013 is a deficient number, since it is larger than the sum of its proper divisors (507249155).

11666730013 is an equidigital number, since it uses as much as digits as its factorization.

11666730013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507249154.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 11666730013 in words is "eleven billion, six hundred sixty-six million, seven hundred thirty thousand, thirteen".