50111220566616 has 128 divisors (see below), whose sum is σ = 139260035946240. Its totient is φ = 14897158848000.

The previous prime is 50111220566593. The next prime is 50111220566621. The reversal of 50111220566616 is 61666502211105.

It is a super-3 number, since 3×50111220566616³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138353931 + ... + 138715653.

It is an arithmetic number, because the mean of its divisors is an integer number (1087969030830).

Almost surely, 2^{50111220566616} 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 50111220566616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69630017973120).

50111220566616 is an abundant number, since it is smaller than the sum of its proper divisors (89148815379624).

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

50111220566616 is a wasteful number, since it uses less digits than its factorization.

50111220566616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371697 (or 371693 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 50111220566616 in words is "fifty trillion, one hundred eleven billion, two hundred twenty million, five hundred sixty-six thousand, six hundred sixteen".