16603441021345 has 8 divisors (see below), whose sum is σ = 19927738048680. Its totient is φ = 13280346935040.

The previous prime is 16603441021333. The next prime is 16603441021381. The reversal of 16603441021345 is 54312014430661.

It can be written as a sum of positive squares in 4 ways, for example, as 1010667681 + 16602430353664 = 31791^2 + 4074608^2 .

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

It is not a de Polignac number, because 16603441021345 - 2²³ = 16603432632737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16603441021298 and 16603441021307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300704890 + ... + 300760099.

It is an arithmetic number, because the mean of its divisors is an integer number (2490967256085).

Almost surely, 2^{16603441021345} is an apocalyptic number.

It is an amenable number.

16603441021345 is a deficient number, since it is larger than the sum of its proper divisors (3324297027335).

16603441021345 is an equidigital number, since it uses as much as digits as its factorization.

16603441021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601470515.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 16603441021345 in words is "sixteen trillion, six hundred three billion, four hundred forty-one million, twenty-one thousand, three hundred forty-five".