55066352005504 has 128 divisors (see below), whose sum is σ = 125738203694400. Its totient is φ = 23531459641344.

The previous prime is 55066352005451. The next prime is 55066352005507. The reversal of 55066352005504 is 40550025366055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066352005507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440408404 + ... + 440533420.

Almost surely, 2^{55066352005504} 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 55066352005504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62869101847200).

55066352005504 is an abundant number, since it is smaller than the sum of its proper divisors (70671851688896).

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

55066352005504 is a wasteful number, since it uses less digits than its factorization.

55066352005504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126460 (or 126448 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 46.

The spelling of 55066352005504 in words is "fifty-five trillion, sixty-six billion, three hundred fifty-two million, five thousand, five hundred four".