100664799 has 8 divisors (see below), whose sum is σ = 137493552. Its totient is φ = 65472960.

The previous prime is 100664783. The next prime is 100664801. The reversal of 100664799 is 997466001.

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

It is not a de Polignac number, because 100664799 - 2⁴ = 100664783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100664799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100664699) by changing a digit.

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, 409084 + ... + 409329.

It is an arithmetic number, because the mean of its divisors is an integer number (17186694).

Almost surely, 2^100664799 is an apocalyptic number.

100664799 is a deficient number, since it is larger than the sum of its proper divisors (36828753).

100664799 is an equidigital number, since it uses as much as digits as its factorization.

100664799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818457.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 100664799 is about 10033.1848881599. The cubic root of 100664799 is about 465.1851869630.

The spelling of 100664799 in words is "one hundred million, six hundred sixty-four thousand, seven hundred ninety-nine".