55616006320 has 320 divisors, whose sum is σ = 156332851200. Its totient is φ = 18001751040.

The previous prime is 55616006279. The next prime is 55616006323. The reversal of 55616006320 is 2360061655.

It is not an unprimeable number, because it can be changed into a prime (55616006323) 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 63 ways as a sum of consecutive naturals, for example, 146743891 + ... + 146744269.

It is an arithmetic number, because the mean of its divisors is an integer number (488540160).

Almost surely, 2^55616006320 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 55616006320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78166425600).

55616006320 is an abundant number, since it is smaller than the sum of its proper divisors (100716844880).

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

55616006320 is a wasteful number, since it uses less digits than its factorization.

55616006320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 55616006320 its reverse (2360061655), we get a palindrome (57976067975).

The spelling of 55616006320 in words is "fifty-five billion, six hundred sixteen million, six thousand, three hundred twenty".