1550550055616 has 112 divisors (see below), whose sum is σ = 3266850972000. Its totient is φ = 728139497472.

The previous prime is 1550550055609. The next prime is 1550550055667. The reversal of 1550550055616 is 6165500550551.

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 15 ways as a sum of consecutive naturals, for example, 68752310 + ... + 68774858.

It is an arithmetic number, because the mean of its divisors is an integer number (29168312250).

Almost surely, 2^{1550550055616} is an apocalyptic number.

1550550055616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550550055616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633425486000).

1550550055616 is an abundant number, since it is smaller than the sum of its proper divisors (1716300916384).

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

1550550055616 is a wasteful number, since it uses less digits than its factorization.

1550550055616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23066 (or 23056 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 1550550055616 in words is "one trillion, five hundred fifty billion, five hundred fifty million, fifty-five thousand, six hundred sixteen".