11566125453413 has 4 divisors (see below), whose sum is σ = 12246485774220. Its totient is φ = 10885765132608.

The previous prime is 11566125453409. The next prime is 11566125453523. The reversal of 11566125453413 is 31435452166511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6372913438369 + 5193212015044 = 2524463^2 + 2278862^2 .

It is a cyclic number.

It is not a de Polignac number, because 11566125453413 - 2² = 11566125453409 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 (11566125450413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340180160378 + ... + 340180160411.

It is an arithmetic number, because the mean of its divisors is an integer number (3061621443555).

Almost surely, 2^{11566125453413} is an apocalyptic number.

It is an amenable number.

11566125453413 is a deficient number, since it is larger than the sum of its proper divisors (680360320807).

11566125453413 is an equidigital number, since it uses as much as digits as its factorization.

11566125453413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680360320806.

The product of its digits is 1296000, while the sum is 47.

The spelling of 11566125453413 in words is "eleven trillion, five hundred sixty-six billion, one hundred twenty-five million, four hundred fifty-three thousand, four hundred thirteen".