100605100606105 has 4 divisors (see below), whose sum is σ = 120726120727332. Its totient is φ = 80484080484880.

The previous prime is 100605100606097. The next prime is 100605100606117. The reversal of 100605100606105 is 501606001506001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35670851810064 + 64934248796041 = 5972508^2 + 8058179^2 .

It is not a de Polignac number, because 100605100606105 - 2³ = 100605100606097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10060510060606 + ... + 10060510060615.

It is an arithmetic number, because the mean of its divisors is an integer number (30181530181833).

Almost surely, 2^{100605100606105} is an apocalyptic number.

It is an amenable number.

100605100606105 is a deficient number, since it is larger than the sum of its proper divisors (20121020121227).

100605100606105 is an equidigital number, since it uses as much as digits as its factorization.

100605100606105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20121020121226.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 100605100606105 in words is "one hundred trillion, six hundred five billion, one hundred million, six hundred six thousand, one hundred five".