160431256605645 has 24 divisors (see below), whose sum is σ = 278098427153976. Its totient is φ = 85557926896128.

The previous prime is 160431256605617. The next prime is 160431256605647. The reversal of 160431256605645 is 546506652134061.

160431256605645 is a `hidden beast` number, since 1 + 6 + 0 + 4 + 3 + 1 + 25 + 6 + 605 + 6 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 40634772960681 + 119796483644964 = 6374541^2 + 10945158^2 .

It is not a de Polignac number, because 160431256605645 - 2¹³ = 160431256597453 is a prime.

It is a super-3 number, since 3×160431256605645³ (a number of 44 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 160431256605591 and 160431256605600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160431256605647) 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 23 ways as a sum of consecutive naturals, for example, 111987832 + ... + 113411361.

It is an arithmetic number, because the mean of its divisors is an integer number (11587434464749).

Almost surely, 2^{160431256605645} is an apocalyptic number.

160431256605645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

160431256605645 is a deficient number, since it is larger than the sum of its proper divisors (117667170548331).

160431256605645 is a wasteful number, since it uses less digits than its factorization.

160431256605645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225415021 (or 225415018 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 160431256605645 in words is "one hundred sixty trillion, four hundred thirty-one billion, two hundred fifty-six million, six hundred five thousand, six hundred forty-five".