500055111040 has 128 divisors (see below), whose sum is σ = 1214552556000. Its totient is φ = 196831100928.

The previous prime is 500055111001. The next prime is 500055111067. The reversal of 500055111040 is 40111550005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×500055111040² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44975562 + ... + 44986678.

Almost surely, 2^500055111040 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 500055111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607276278000).

500055111040 is an abundant number, since it is smaller than the sum of its proper divisors (714497444960).

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

500055111040 is a wasteful number, since it uses less digits than its factorization.

500055111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12252 (or 12240 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 500055111040 its reverse (40111550005), we get a palindrome (540166661045).

The spelling of 500055111040 in words is "five hundred billion, fifty-five million, one hundred eleven thousand, forty".