55144560540000 has 120 divisors (see below), whose sum is σ = 180885187680120. Its totient is φ = 14705216128000.

The previous prime is 55144560539993. The next prime is 55144560540023. The reversal of 55144560540000 is 4506544155.

55144560540000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 459478005 + ... + 459598004.

It is an arithmetic number, because the mean of its divisors is an integer number (1507376564001).

Almost surely, 2^{55144560540000} is an apocalyptic number.

55144560540000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55144560540000 is an abundant number, since it is smaller than the sum of its proper divisors (125740627140120).

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

55144560540000 is an equidigital number, since it uses as much as digits as its factorization.

55144560540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919076042 (or 919076019 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 55144560540000 in words is "fifty-five trillion, one hundred forty-four billion, five hundred sixty million, five hundred forty thousand".