160065056561 has 8 divisors (see below), whose sum is σ = 165632877480. Its totient is φ = 154500458112.

The previous prime is 160065056539. The next prime is 160065056573. The reversal of 160065056561 is 165650560061.

It can be written as a sum of positive squares in 4 ways, for example, as 53164830625 + 106900225936 = 230575^2 + 326956^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160065056561 - 2⁶ = 160065056497 is a prime.

It is a super-2 number, since 2×160065056561² (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 (160065055561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704330 + ... + 903443.

It is an arithmetic number, because the mean of its divisors is an integer number (20704109685).

Almost surely, 2^160065056561 is an apocalyptic number.

It is an amenable number.

160065056561 is a deficient number, since it is larger than the sum of its proper divisors (5567820919).

160065056561 is a wasteful number, since it uses less digits than its factorization.

160065056561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611235.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 160065056561 in words is "one hundred sixty billion, sixty-five million, fifty-six thousand, five hundred sixty-one".