100665055 has 8 divisors (see below), whose sum is σ = 120853152. Its totient is φ = 80495328.

The previous prime is 100665013. The next prime is 100665079. The reversal of 100665055 is 550566001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100665055 is a prime.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15337 + ... + 20893.

It is an arithmetic number, because the mean of its divisors is an integer number (15106644).

Almost surely, 2^100665055 is an apocalyptic number.

100665055 is a deficient number, since it is larger than the sum of its proper divisors (20188097).

100665055 is an equidigital number, since it uses as much as digits as its factorization.

100665055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 100665055 is about 10033.1976458156. The cubic root of 100665055 is about 465.1855812991.

The spelling of 100665055 in words is "one hundred million, six hundred sixty-five thousand, fifty-five".