12166725621113 has 16 divisors (see below), whose sum is σ = 14735142898560. Its totient is φ = 9823428585600.

The previous prime is 12166725621097. The next prime is 12166725621131. The reversal of 12166725621113 is 31112652766121.

It is a happy number.

It is not a de Polignac number, because 12166725621113 - 2⁴ = 12166725621097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12166725621133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730901543 + ... + 730918188.

It is an arithmetic number, because the mean of its divisors is an integer number (920946431160).

Almost surely, 2^{12166725621113} is an apocalyptic number.

It is an amenable number.

12166725621113 is a deficient number, since it is larger than the sum of its proper divisors (2568417277447).

12166725621113 is a wasteful number, since it uses less digits than its factorization.

12166725621113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461819808.

The product of its digits is 181440, while the sum is 44.

The spelling of 12166725621113 in words is "twelve trillion, one hundred sixty-six billion, seven hundred twenty-five million, six hundred twenty-one thousand, one hundred thirteen".