12164614447551 has 4 divisors (see below), whose sum is σ = 16219485930072. Its totient is φ = 8109742965032.

The previous prime is 12164614447543. The next prime is 12164614447607. The reversal of 12164614447551 is 15574441646121.

12164614447551 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.

It is a cyclic number.

It is not a de Polignac number, because 12164614447551 - 2³ = 12164614447543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12164614447494 and 12164614447503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164614442551) 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, 2027435741256 + ... + 2027435741261.

It is an arithmetic number, because the mean of its divisors is an integer number (4054871482518).

Almost surely, 2^{12164614447551} is an apocalyptic number.

12164614447551 is a deficient number, since it is larger than the sum of its proper divisors (4054871482521).

12164614447551 is an equidigital number, since it uses as much as digits as its factorization.

12164614447551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054871482520.

The product of its digits is 3225600, while the sum is 51.

The spelling of 12164614447551 in words is "twelve trillion, one hundred sixty-four billion, six hundred fourteen million, four hundred forty-seven thousand, five hundred fifty-one".