160284901681 has 4 divisors (see below), whose sum is σ = 160336793700. Its totient is φ = 160233009664.

The previous prime is 160284901663. The next prime is 160284901703. The reversal of 160284901681 is 186109482061.

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 133839637281 + 26445264400 = 365841^2 + 162620^2 .

It is a cyclic number.

It is not a de Polignac number, because 160284901681 - 2¹¹ = 160284899633 is a prime.

It is a super-2 number, since 2×160284901681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160284901781) 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, 25941376 + ... + 25947553.

It is an arithmetic number, because the mean of its divisors is an integer number (40084198425).

Almost surely, 2^160284901681 is an apocalyptic number.

It is an amenable number.

160284901681 is a deficient number, since it is larger than the sum of its proper divisors (51892019).

160284901681 is an equidigital number, since it uses as much as digits as its factorization.

160284901681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51892018.

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 160284901681 in words is "one hundred sixty billion, two hundred eighty-four million, nine hundred one thousand, six hundred eighty-one".