555118938864 has 360 divisors, whose sum is σ = 1963700743680. Its totient is φ = 145409644800.

The previous prime is 555118938863. The next prime is 555118938887. The reversal of 555118938864 is 468839811555.

555118938864 is a `hidden beast` number, since 5 + 5 + 511 + 8 + 9 + 38 + 86 + 4 = 666.

555118938864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×555118938864² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555118938863) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4089199 + ... + 4222769.

It is an arithmetic number, because the mean of its divisors is an integer number (5454724288).

Almost surely, 2^555118938864 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 555118938864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981850371840).

555118938864 is an abundant number, since it is smaller than the sum of its proper divisors (1408581804816).

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

555118938864 is a wasteful number, since it uses less digits than its factorization.

555118938864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133649 (or 133633 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 63.

The spelling of 555118938864 in words is "five hundred fifty-five billion, one hundred eighteen million, nine hundred thirty-eight thousand, eight hundred sixty-four".