1608288940191 has 4 divisors (see below), whose sum is σ = 2144385253592. Its totient is φ = 1072192626792.

The previous prime is 1608288940177. The next prime is 1608288940217. The reversal of 1608288940191 is 1910498828061.

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

It is not a de Polignac number, because 1608288940191 - 2²⁶ = 1608221831327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608288940171) 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, 268048156696 + ... + 268048156701.

It is an arithmetic number, because the mean of its divisors is an integer number (536096313398).

Almost surely, 2^{1608288940191} is an apocalyptic number.

1608288940191 is a deficient number, since it is larger than the sum of its proper divisors (536096313401).

1608288940191 is an equidigital number, since it uses as much as digits as its factorization.

1608288940191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536096313400.

The product of its (nonzero) digits is 1990656, while the sum is 57.

It can be divided in two parts, 160828 and 8940191, that added together give a palindrome (9101019).

The spelling of 1608288940191 in words is "one trillion, six hundred eight billion, two hundred eighty-eight million, nine hundred forty thousand, one hundred ninety-one".