16805425160499 has 4 divisors (see below), whose sum is σ = 22407233547336. Its totient is φ = 11203616773664.

The previous prime is 16805425160497. The next prime is 16805425160521. The reversal of 16805425160499 is 99406152450861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16805425160499 - 2¹ = 16805425160497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16805425160497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800904193414 + ... + 2800904193419.

It is an arithmetic number, because the mean of its divisors is an integer number (5601808386834).

Almost surely, 2^{16805425160499} is an apocalyptic number.

16805425160499 is a deficient number, since it is larger than the sum of its proper divisors (5601808386837).

16805425160499 is an equidigital number, since it uses as much as digits as its factorization.

16805425160499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601808386836.

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 16805425160499 in words is "sixteen trillion, eight hundred five billion, four hundred twenty-five million, one hundred sixty thousand, four hundred ninety-nine".