1608816009562 has 4 divisors (see below), whose sum is σ = 2413224014346. Its totient is φ = 804408004780.

The previous prime is 1608816009551. The next prime is 1608816009631. The reversal of 1608816009562 is 2659006188061.

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

It can be written as a sum of positive squares in only one way, i.e., 1597238464761 + 11577544801 = 1263819^2 + 107599^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402204002389 + ... + 402204002392.

Almost surely, 2^{1608816009562} is an apocalyptic number.

1608816009562 is a deficient number, since it is larger than the sum of its proper divisors (804408004784).

1608816009562 is an equidigital number, since it uses as much as digits as its factorization.

1608816009562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804408004783.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 1608816009562 in words is "one trillion, six hundred eight billion, eight hundred sixteen million, nine thousand, five hundred sixty-two".