16504016345 has 8 divisors (see below), whose sum is σ = 20129489160. Its totient is φ = 12986766720.

The previous prime is 16504016327. The next prime is 16504016359. The reversal of 16504016345 is 54361040561.

It can be written as a sum of positive squares in 4 ways, for example, as 568488649 + 15935527696 = 23843^2 + 126236^2 .

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

It is not a de Polignac number, because 16504016345 - 2²⁶ = 16436907481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27055460 + ... + 27056069.

It is an arithmetic number, because the mean of its divisors is an integer number (2516186145).

Almost surely, 2^16504016345 is an apocalyptic number.

It is an amenable number.

16504016345 is a deficient number, since it is larger than the sum of its proper divisors (3625472815).

16504016345 is an equidigital number, since it uses as much as digits as its factorization.

16504016345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54111595.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 16504016345 in words is "sixteen billion, five hundred four million, sixteen thousand, three hundred forty-five".