12416646125261 has 4 divisors (see below), whose sum is σ = 14190452714592. Its totient is φ = 10642839535932.

The previous prime is 12416646125227. The next prime is 12416646125263. The reversal of 12416646125261 is 16252164661421.

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.

It is a cyclic number.

It is not a de Polignac number, because 12416646125261 - 2³⁴ = 12399466256077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12416646125263) 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 3 ways as a sum of consecutive naturals, for example, 886903294655 + ... + 886903294668.

It is an arithmetic number, because the mean of its divisors is an integer number (3547613178648).

Almost surely, 2^{12416646125261} is an apocalyptic number.

It is an amenable number.

12416646125261 is a deficient number, since it is larger than the sum of its proper divisors (1773806589331).

12416646125261 is an equidigital number, since it uses as much as digits as its factorization.

12416646125261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773806589330.

The product of its digits is 829440, while the sum is 47.

The spelling of 12416646125261 in words is "twelve trillion, four hundred sixteen billion, six hundred forty-six million, one hundred twenty-five thousand, two hundred sixty-one".