100561055500560 has 160 divisors (see below), whose sum is σ = 320207462410752. Its totient is φ = 26088028784640.

The previous prime is 100561055500537. The next prime is 100561055500679. The reversal of 100561055500560 is 65005550165001.

It is a super-2 number, since 2×100561055500560² (a number of 29 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, 65997705 + ... + 67504215.

Almost surely, 2^{100561055500560} is an apocalyptic number.

100561055500560 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 100561055500560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160103731205376).

100561055500560 is an abundant number, since it is smaller than the sum of its proper divisors (219646406910192).

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

100561055500560 is a wasteful number, since it uses less digits than its factorization.

100561055500560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514081 (or 1514075 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 100561055500560 in words is "one hundred trillion, five hundred sixty-one billion, fifty-five million, five hundred thousand, five hundred sixty".