16664085403 has 8 divisors (see below), whose sum is σ = 19053828608. Its totient is φ = 14276632104.

The previous prime is 16664085401. The next prime is 16664085409. The reversal of 16664085403 is 30458046661.

It is a happy number.

16664085403 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 not a de Polignac number, because 16664085403 - 2¹ = 16664085401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16664085403.

It is not an unprimeable number, because it can be changed into a prime (16664085401) 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 7 ways as a sum of consecutive naturals, for example, 556851 + ... + 586012.

It is an arithmetic number, because the mean of its divisors is an integer number (2381728576).

Almost surely, 2^16664085403 is an apocalyptic number.

16664085403 is a deficient number, since it is larger than the sum of its proper divisors (2389743205).

16664085403 is a wasteful number, since it uses less digits than its factorization.

16664085403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144953.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 16664085403 in words is "sixteen billion, six hundred sixty-four million, eighty-five thousand, four hundred three".