55555513641288 has 128 divisors (see below), whose sum is σ = 163492441632000. Its totient is φ = 17419167728640.

The previous prime is 55555513641283. The next prime is 55555513641293. The reversal of 55555513641288 is 88214631555555.

55555513641288 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 5 + 5 + 136 + 412 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (55555513641283) and next prime (55555513641293).

It is not an unprimeable number, because it can be changed into a prime (55555513641283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2047893 + ... + 10738011.

It is an arithmetic number, because the mean of its divisors is an integer number (1277284700250).

Almost surely, 2^{55555513641288} 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 55555513641288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81746220816000).

55555513641288 is an abundant number, since it is smaller than the sum of its proper divisors (107936927990712).

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

55555513641288 is a wasteful number, since it uses less digits than its factorization.

55555513641288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691892 (or 8691882 counting only the distinct ones).

The product of its digits is 144000000, while the sum is 63.

The spelling of 55555513641288 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred thirteen million, six hundred forty-one thousand, two hundred eighty-eight".