55444365366 has 64 divisors (see below), whose sum is σ = 120940065792. Its totient is φ = 16842742272.

The previous prime is 55444365349. The next prime is 55444365371. The reversal of 55444365366 is 66356344455.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 18339331 + ... + 18342353.

It is an arithmetic number, because the mean of its divisors is an integer number (1889688528).

Almost surely, 2^55444365366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55444365366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60470032896).

55444365366 is an abundant number, since it is smaller than the sum of its proper divisors (65495700426).

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

55444365366 is a wasteful number, since it uses less digits than its factorization.

55444365366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957.

The product of its digits is 15552000, while the sum is 51.

The spelling of 55444365366 in words is "fifty-five billion, four hundred forty-four million, three hundred sixty-five thousand, three hundred sixty-six".