616155505050 has 288 divisors, whose sum is σ = 1606717734912. Its totient is φ = 156219840000.

The previous prime is 616155504971. The next prime is 616155505081. The reversal of 616155505050 is 50505551616.

It is a Curzon 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 143 ways as a sum of consecutive naturals, for example, 2273636415 + ... + 2273636685.

It is an arithmetic number, because the mean of its divisors is an integer number (5578881024).

Almost surely, 2^616155505050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616155505050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803358867456).

616155505050 is an abundant number, since it is smaller than the sum of its proper divisors (990562229862).

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

616155505050 is a wasteful number, since it uses less digits than its factorization.

616155505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 616155505050 in words is "six hundred sixteen billion, one hundred fifty-five million, five hundred five thousand, fifty".