16825120808647 has 16 divisors (see below), whose sum is σ = 17744100728832. Its totient is φ = 15929917436160.

The previous prime is 16825120808621. The next prime is 16825120808659. The reversal of 16825120808647 is 74680802152861.

It is a cyclic number.

It is not a de Polignac number, because 16825120808647 - 2¹⁹ = 16825120284359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16825120808591 and 16825120808600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16825120800647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675383 + ... + 6037975.

It is an arithmetic number, because the mean of its divisors is an integer number (1109006295552).

Almost surely, 2^{16825120808647} is an apocalyptic number.

16825120808647 is a deficient number, since it is larger than the sum of its proper divisors (918979920185).

16825120808647 is a wasteful number, since it uses less digits than its factorization.

16825120808647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365318.

The product of its (nonzero) digits is 10321920, while the sum is 58.

The spelling of 16825120808647 in words is "sixteen trillion, eight hundred twenty-five billion, one hundred twenty million, eight hundred eight thousand, six hundred forty-seven".