55643344326 has 24 divisors (see below), whose sum is σ = 121440588984. Its totient is φ = 18412395360.

The previous prime is 55643344277. The next prime is 55643344331. The reversal of 55643344326 is 62344334655.

55643344326 is a `hidden beast` number, since 556 + 4 + 3 + 34 + 43 + 26 = 666.

55643344326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11279640 + ... + 11284571.

It is an arithmetic number, because the mean of its divisors is an integer number (5060024541).

Almost surely, 2^55643344326 is an apocalyptic number.

55643344326 is an abundant number, since it is smaller than the sum of its proper divisors (65797244658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55643344326 is a wasteful number, since it uses less digits than its factorization.

55643344326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564356 (or 22564353 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 45.

The spelling of 55643344326 in words is "fifty-five billion, six hundred forty-three million, three hundred forty-four thousand, three hundred twenty-six".