160987920289 has 45 divisors (see below), whose sum is σ = 198114876801. Its totient is φ = 130432823640.

The previous prime is 160987920221. The next prime is 160987920397. The reversal of 160987920289 is 982029789061.

The square root of 160987920289 is 401233.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 160987920289 - 2¹⁵ = 160987887521 is a prime.

It is a super-2 number, since 2×160987920289² (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 (160987920089) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3743905102 + ... + 3743905144.

Almost surely, 2^160987920289 is an apocalyptic number.

160987920289 is the 401233-rd square number.

160987920289 is the 200617-th centered octagonal number.

It is an amenable number.

160987920289 is a deficient number, since it is larger than the sum of its proper divisors (37126956512).

160987920289 is an frugal number, since it uses more digits than its factorization.

160987920289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 160987920289 in words is "one hundred sixty billion, nine hundred eighty-seven million, nine hundred twenty thousand, two hundred eighty-nine".