160551643817 has 4 divisors (see below), whose sum is σ = 161240706900. Its totient is φ = 159862580736.

The previous prime is 160551643807. The next prime is 160551643853. The reversal of 160551643817 is 718346155061.

It is a happy number.

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 29985770896 + 130565872921 = 173164^2 + 361339^2 .

It is a cyclic number.

It is not a de Polignac number, because 160551643817 - 2⁶ = 160551643753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160551643807) 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, 344531192 + ... + 344531657.

It is an arithmetic number, because the mean of its divisors is an integer number (40310176725).

Almost surely, 2^160551643817 is an apocalyptic number.

It is an amenable number.

160551643817 is a deficient number, since it is larger than the sum of its proper divisors (689063083).

160551643817 is an equidigital number, since it uses as much as digits as its factorization.

160551643817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689063082.

The product of its (nonzero) digits is 604800, while the sum is 47.

Adding to 160551643817 its reverse (718346155061), we get a palindrome (878897798878).

The spelling of 160551643817 in words is "one hundred sixty billion, five hundred fifty-one million, six hundred forty-three thousand, eight hundred seventeen".