100605561105 has 32 divisors (see below), whose sum is σ = 184230816768. Its totient is φ = 45924523200.

The previous prime is 100605561079. The next prime is 100605561169. The reversal of 100605561105 is 501165506001.

It is not a de Polignac number, because 100605561105 - 2¹¹ = 100605559057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 620751 + ... + 765860.

It is an arithmetic number, because the mean of its divisors is an integer number (5757213024).

Almost surely, 2^100605561105 is an apocalyptic number.

100605561105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100605561105 is a deficient number, since it is larger than the sum of its proper divisors (83625255663).

100605561105 is a wasteful number, since it uses less digits than its factorization.

100605561105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387317.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 100605561105 in words is "one hundred billion, six hundred five million, five hundred sixty-one thousand, one hundred five".