160867572889 has 9 divisors (see below), whose sum is σ = 162961745247. Its totient is φ = 158799990024.

The previous prime is 160867572871. The next prime is 160867572967. The reversal of 160867572889 is 988275768061.

The square root of 160867572889 is 401083.

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

160867572889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 156337206025 + 4530366864 = 395395^2 + 67308^2 .

It is not a de Polignac number, because 160867572889 - 2⁹ = 160867572377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160867572869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31683019 + ... + 31688095.

It is an arithmetic number, because the mean of its divisors is an integer number (18106860583).

Almost surely, 2^160867572889 is an apocalyptic number.

160867572889 is the 401083-rd square number.

160867572889 is the 200542-nd centered octagonal number.

It is an amenable number.

160867572889 is a deficient number, since it is larger than the sum of its proper divisors (2094172358).

160867572889 is an frugal number, since it uses more digits than its factorization.

160867572889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10312 (or 5156 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 67.

The spelling of 160867572889 in words is "one hundred sixty billion, eight hundred sixty-seven million, five hundred seventy-two thousand, eight hundred eighty-nine".