100001055560 has 128 divisors (see below), whose sum is σ = 258590949120. Its totient is φ = 34093965312.

The previous prime is 100001055523. The next prime is 100001055589. The reversal of 100001055560 is 65550100001.

100001055560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×100001055560² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42069092 + ... + 42071468.

It is an arithmetic number, because the mean of its divisors is an integer number (2020241790).

Almost surely, 2^100001055560 is an apocalyptic number.

100001055560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100001055560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129295474560).

100001055560 is an abundant number, since it is smaller than the sum of its proper divisors (158589893560).

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

100001055560 is a wasteful number, since it uses less digits than its factorization.

100001055560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 100001055560 its reverse (65550100001), we get a palindrome (165551155561).

The spelling of 100001055560 in words is "one hundred billion, one million, fifty-five thousand, five hundred sixty".