160725605517 has 6 divisors (see below), whose sum is σ = 232159207982. Its totient is φ = 107150403672.

The previous prime is 160725605507. The next prime is 160725605527. The reversal of 160725605517 is 715506527061.

160725605517 is a `hidden beast` number, since 1 + 6 + 0 + 7 + 25 + 605 + 5 + 17 = 666.

It is an interprime number because it is at equal distance from previous prime (160725605507) and next prime (160725605527).

It can be written as a sum of positive squares in only one way, i.e., 92468295396 + 68257310121 = 304086^2 + 261261^2 .

It is not a de Polignac number, because 160725605517 - 2⁷ = 160725605389 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 (160725605507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8929200298 + ... + 8929200315.

Almost surely, 2^160725605517 is an apocalyptic number.

It is an amenable number.

160725605517 is a deficient number, since it is larger than the sum of its proper divisors (71433602465).

160725605517 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 160725605517 = (510766521570)₉.

160725605517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17858400619 (or 17858400616 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 160725605517 in words is "one hundred sixty billion, seven hundred twenty-five million, six hundred five thousand, five hundred seventeen".