664100099 has 8 divisors (see below), whose sum is σ = 717181920. Its totient is φ = 611303616.

The previous prime is 664100093. The next prime is 664100131. The reversal of 664100099 is 990001466.

664100099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 664100099 - 2²⁰ = 663051523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664100093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66482 + ... + 75815.

It is an arithmetic number, because the mean of its divisors is an integer number (89647740).

Almost surely, 2^664100099 is an apocalyptic number.

664100099 is a deficient number, since it is larger than the sum of its proper divisors (53081821).

664100099 is a wasteful number, since it uses less digits than its factorization.

664100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142669.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 664100099 is about 25770.1396775415. The cubic root of 664100099 is about 872.4579713364.

The spelling of 664100099 in words is "six hundred sixty-four million, one hundred thousand, ninety-nine".