16394403380603 has 8 divisors (see below), whose sum is σ = 16401241443840. Its totient is φ = 16387566085800.

The previous prime is 16394403380539. The next prime is 16394403380617. The reversal of 16394403380603 is 30608330449361.

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 16394403380603 - 2⁶ = 16394403380539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16394403380653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44654858 + ... + 45020496.

It is an arithmetic number, because the mean of its divisors is an integer number (2050155180480).

Almost surely, 2^{16394403380603} is an apocalyptic number.

16394403380603 is a deficient number, since it is larger than the sum of its proper divisors (6838063237).

16394403380603 is a wasteful number, since it uses less digits than its factorization.

16394403380603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384217.

The product of its (nonzero) digits is 3359232, while the sum is 50.

The spelling of 16394403380603 in words is "sixteen trillion, three hundred ninety-four billion, four hundred three million, three hundred eighty thousand, six hundred three".