16328788542505 has 32 divisors (see below), whose sum is σ = 20533342072320. Its totient is φ = 12442002693120.

The previous prime is 16328788542403. The next prime is 16328788542511. The reversal of 16328788542505 is 50524588782361.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-16328788542505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364679299 + ... + 364724071.

It is an arithmetic number, because the mean of its divisors is an integer number (641666939760).

Almost surely, 2^{16328788542505} is an apocalyptic number.

It is an amenable number.

16328788542505 is a deficient number, since it is larger than the sum of its proper divisors (4204553529815).

16328788542505 is a wasteful number, since it uses less digits than its factorization.

16328788542505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58201.

The product of its (nonzero) digits is 129024000, while the sum is 64.

The spelling of 16328788542505 in words is "sixteen trillion, three hundred twenty-eight billion, seven hundred eighty-eight million, five hundred forty-two thousand, five hundred five".