100555560610544 has 80 divisors (see below), whose sum is σ = 210738726233280. Its totient is φ = 46205738496000.

The previous prime is 100555560610457. The next prime is 100555560610567. The reversal of 100555560610544 is 445016065555001.

It is a super-2 number, since 2×100555560610544² (a number of 29 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, 80341544 + ... + 81583544.

It is an arithmetic number, because the mean of its divisors is an integer number (2634234077916).

Almost surely, 2^{100555560610544} 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 100555560610544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105369363116640).

100555560610544 is an abundant number, since it is smaller than the sum of its proper divisors (110183165622736).

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

100555560610544 is a wasteful number, since it uses less digits than its factorization.

100555560610544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243738 (or 1243732 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 100555560610544 in words is "one hundred trillion, five hundred fifty-five billion, five hundred sixty million, six hundred ten thousand, five hundred forty-four".