100669865 has 8 divisors (see below), whose sum is σ = 124700928. Its totient is φ = 77937840.

The previous prime is 100669823. The next prime is 100669879. The reversal of 100669865 is 568966001.

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

It is not a de Polignac number, because 100669865 - 2¹⁸ = 100407721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324587 + ... + 324896.

It is an arithmetic number, because the mean of its divisors is an integer number (15587616).

Almost surely, 2^100669865 is an apocalyptic number.

It is an amenable number.

100669865 is a deficient number, since it is larger than the sum of its proper divisors (24031063).

100669865 is an equidigital number, since it uses as much as digits as its factorization.

100669865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649519.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 100669865 is about 10033.4373471906. The cubic root of 100669865 is about 465.1929903814.

The spelling of 100669865 in words is "one hundred million, six hundred sixty-nine thousand, eight hundred sixty-five".