160887681 has 16 divisors (see below), whose sum is σ = 238566720. Its totient is φ = 107161920.

The previous prime is 160887653. The next prime is 160887689. The reversal of 160887681 is 186788061.

160887681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 160887681 - 2¹⁴ = 160871297 is a prime.

It is a super-2 number, since 2×160887681² = 51769691795115522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (160887689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40521 + ... + 44313.

It is an arithmetic number, because the mean of its divisors is an integer number (14910420).

Almost surely, 2^160887681 is an apocalyptic number.

It is an amenable number.

160887681 is a deficient number, since it is larger than the sum of its proper divisors (77679039).

160887681 is a wasteful number, since it uses less digits than its factorization.

160887681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373 (or 5367 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 160887681 is about 12684.1507796147. The cubic root of 160887681 is about 543.8856460632.

The spelling of 160887681 in words is "one hundred sixty million, eight hundred eighty-seven thousand, six hundred eighty-one".