16583285497 has 4 divisors (see below), whose sum is σ = 16590264436. Its totient is φ = 16576306560.

The previous prime is 16583285473. The next prime is 16583285503. The reversal of 16583285497 is 79458238561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2380366521 + 14202918976 = 48789^2 + 119176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16583285497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16583285437) 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, 3485904 + ... + 3490657.

It is an arithmetic number, because the mean of its divisors is an integer number (4147566109).

Almost surely, 2^16583285497 is an apocalyptic number.

It is an amenable number.

16583285497 is a deficient number, since it is larger than the sum of its proper divisors (6978939).

16583285497 is an equidigital number, since it uses as much as digits as its factorization.

16583285497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978938.

The product of its digits is 14515200, while the sum is 58.

The spelling of 16583285497 in words is "sixteen billion, five hundred eighty-three million, two hundred eighty-five thousand, four hundred ninety-seven".