100660316605 has 4 divisors (see below), whose sum is σ = 120792379932. Its totient is φ = 80528253280.

The previous prime is 100660316591. The next prime is 100660316611. The reversal of 100660316605 is 506613066001.

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 62481501369 + 38178815236 = 249963^2 + 195394^2 .

It is not a de Polignac number, because 100660316605 - 2¹⁵ = 100660283837 is a prime.

It is a super-3 number, since 3×100660316605³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10066031656 + ... + 10066031665.

It is an arithmetic number, because the mean of its divisors is an integer number (30198094983).

Almost surely, 2^100660316605 is an apocalyptic number.

It is an amenable number.

100660316605 is a deficient number, since it is larger than the sum of its proper divisors (20132063327).

100660316605 is an equidigital number, since it uses as much as digits as its factorization.

100660316605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20132063326.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 100660316605 in words is "one hundred billion, six hundred sixty million, three hundred sixteen thousand, six hundred five".