1608416243191 has 4 divisors (see below), whose sum is σ = 1608425341992. Its totient is φ = 1608407144392.

The previous prime is 1608416243183. The next prime is 1608416243209. The reversal of 1608416243191 is 1913426148061.

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 1608416243191 - 2³ = 1608416243183 is a prime.

It is a super-2 number, since 2×1608416243191² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608416244191) 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, 4278880 + ... + 4639573.

It is an arithmetic number, because the mean of its divisors is an integer number (402106335498).

Almost surely, 2^{1608416243191} is an apocalyptic number.

1608416243191 is a deficient number, since it is larger than the sum of its proper divisors (9098801).

1608416243191 is an equidigital number, since it uses as much as digits as its factorization.

1608416243191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098800.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 1608416243191 in words is "one trillion, six hundred eight billion, four hundred sixteen million, two hundred forty-three thousand, one hundred ninety-one".