160501121520217 has 4 divisors (see below), whose sum is σ = 160779286376116. Its totient is φ = 160222956664320.

The previous prime is 160501121520209. The next prime is 160501121520247. The reversal of 160501121520217 is 712025121105061.

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 90017893426176 + 70483228094041 = 9487776^2 + 8395429^2 .

It is a cyclic number.

It is not a de Polignac number, because 160501121520217 - 2³ = 160501121520209 is a prime.

It is a super-2 number, since 2×160501121520217² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160501121520247) 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, 139082427084 + ... + 139082428237.

It is an arithmetic number, because the mean of its divisors is an integer number (40194821594029).

Almost surely, 2^{160501121520217} is an apocalyptic number.

It is an amenable number.

160501121520217 is a deficient number, since it is larger than the sum of its proper divisors (278164855899).

160501121520217 is an equidigital number, since it uses as much as digits as its factorization.

160501121520217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278164855898.

The product of its (nonzero) digits is 8400, while the sum is 34.

Adding to 160501121520217 its reverse (712025121105061), we get a palindrome (872526242625278).

The spelling of 160501121520217 in words is "one hundred sixty trillion, five hundred one billion, one hundred twenty-one million, five hundred twenty thousand, two hundred seventeen".