100000666 has 8 divisors (see below), whose sum is σ = 150397920. Its totient is φ = 49868028.

The previous prime is 100000661. The next prime is 100000669. The reversal of 100000666 is 666000001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

100000666 is a modest number, since divided by 666 gives 100 as remainder.

It is not an unprimeable number, because it can be changed into a prime (100000661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65206 + ... + 66721.

It is an arithmetic number, because the mean of its divisors is an integer number (18799740).

Almost surely, 2^100000666 is an apocalyptic number.

100000666 is a deficient number, since it is larger than the sum of its proper divisors (50397254).

100000666 is a wasteful number, since it uses less digits than its factorization.

100000666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132308.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 100000666 is about 10000.0332999446. The cubic root of 100000666 is about 464.1599137917.

Adding to 100000666 its reverse (666000001), we get a palindrome (766000667).

The spelling of 100000666 in words is "one hundred million, six hundred sixty-six", and thus it is an aban number.