50556665016 has 144 divisors (see below), whose sum is σ = 161746401960. Its totient is φ = 14141687040.

The previous prime is 50556665011. The next prime is 50556665059. The reversal of 50556665016 is 61056665505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50556665011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55011 + ... + 322706.

Almost surely, 2^50556665016 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 50556665016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80873200980).

50556665016 is an abundant number, since it is smaller than the sum of its proper divisors (111189736944).

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

50556665016 is a wasteful number, since it uses less digits than its factorization.

50556665016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377766 (or 377746 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 50556665016 in words is "fifty billion, five hundred fifty-six million, six hundred sixty-five thousand, sixteen".