100660005 has 24 divisors (see below), whose sum is σ = 183661920. Its totient is φ = 50859360.

The previous prime is 100659997. The next prime is 100660013. The reversal of 100660005 is 500066001.

100660005 is a `hidden beast` number, since 1 + 0 + 0 + 660 + 0 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (100659997) and next prime (100660013).

It is not a de Polignac number, because 100660005 - 2³ = 100659997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100660005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58011 + ... + 59720.

It is an arithmetic number, because the mean of its divisors is an integer number (7652580).

Almost surely, 2^100660005 is an apocalyptic number.

100660005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100660005 is a deficient number, since it is larger than the sum of its proper divisors (83001915).

100660005 is a wasteful number, since it uses less digits than its factorization.

100660005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117761 (or 117758 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 100660005 is about 10032.9459781263. The cubic root of 100660005 is about 465.1778022790.

The spelling of 100660005 in words is "one hundred million, six hundred sixty thousand, five".