55345544223456 has 96 divisors (see below), whose sum is σ = 147924430416000. Its totient is φ = 18113736604160.

The previous prime is 55345544223451. The next prime is 55345544223503. The reversal of 55345544223456 is 65432244554355.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 55345544223396 and 55345544223405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345544223451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300806 + ... + 10601093.

It is an arithmetic number, because the mean of its divisors is an integer number (1540879483500).

Almost surely, 2^{55345544223456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55345544223456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73962215208000).

55345544223456 is an abundant number, since it is smaller than the sum of its proper divisors (92578886192544).

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

55345544223456 is a wasteful number, since it uses less digits than its factorization.

55345544223456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11902792 (or 11902784 counting only the distinct ones).

The product of its digits is 172800000, while the sum is 57.

The spelling of 55345544223456 in words is "fifty-five trillion, three hundred forty-five billion, five hundred forty-four million, two hundred twenty-three thousand, four hundred fifty-six".