12458644165553 has 4 divisors (see below), whose sum is σ = 13000324346688. Its totient is φ = 11916963984420.

The previous prime is 12458644165549. The next prime is 12458644165657. The reversal of 12458644165553 is 35556144685421.

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 12458644165553 - 2² = 12458644165549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12458644165492 and 12458644165501.

It is not an unprimeable number, because it can be changed into a prime (12458644165853) 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, 270840090533 + ... + 270840090578.

It is an arithmetic number, because the mean of its divisors is an integer number (3250081086672).

Almost surely, 2^{12458644165553} is an apocalyptic number.

It is an amenable number.

12458644165553 is a deficient number, since it is larger than the sum of its proper divisors (541680181135).

12458644165553 is an equidigital number, since it uses as much as digits as its factorization.

12458644165553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541680181134.

The product of its digits is 69120000, while the sum is 59.

The spelling of 12458644165553 in words is "twelve trillion, four hundred fifty-eight billion, six hundred forty-four million, one hundred sixty-five thousand, five hundred fifty-three".