16394801900305 has 8 divisors (see below), whose sum is σ = 19673812026792. Its totient is φ = 13115808355968.

The previous prime is 16394801900303. The next prime is 16394801900329. The reversal of 16394801900305 is 50300910849361.

It can be written as a sum of positive squares in 4 ways, for example, as 1849861129216 + 14544940771089 = 1360096^2 + 3813783^2 .

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 16394801900305 - 2¹ = 16394801900303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16394801900303) 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, 1855374 + ... + 6019303.

It is an arithmetic number, because the mean of its divisors is an integer number (2459226503349).

Almost surely, 2^{16394801900305} is an apocalyptic number.

It is an amenable number.

16394801900305 is a deficient number, since it is larger than the sum of its proper divisors (3279010126487).

16394801900305 is an equidigital number, since it uses as much as digits as its factorization.

16394801900305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291075.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 16394801900305 in words is "sixteen trillion, three hundred ninety-four billion, eight hundred one million, nine hundred thousand, three hundred five".