160398255561689 has 4 divisors (see below), whose sum is σ = 160405779306240. Its totient is φ = 160390731817140.

The previous prime is 160398255561617. The next prime is 160398255561721. The reversal of 160398255561689 is 986165552893061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 160398255561689 - 2³² = 160393960594393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160398255561289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761840297 + ... + 3761882934.

It is an arithmetic number, because the mean of its divisors is an integer number (40101444826560).

Almost surely, 2^{160398255561689} is an apocalyptic number.

It is an amenable number.

160398255561689 is a deficient number, since it is larger than the sum of its proper divisors (7523744551).

160398255561689 is an equidigital number, since it uses as much as digits as its factorization.

160398255561689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523744550.

The product of its (nonzero) digits is 839808000, while the sum is 74.

The spelling of 160398255561689 in words is "one hundred sixty trillion, three hundred ninety-eight billion, two hundred fifty-five million, five hundred sixty-one thousand, six hundred eighty-nine".