160109618769 has 9 divisors (see below), whose sum is σ = 231271183273. Its totient is φ = 106738945572.

The previous prime is 160109618731. The next prime is 160109618771. The reversal of 160109618769 is 967816901061.

It is a happy number.

The square root of 160109618769 is 400137.

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

160109618769 is a `hidden beast` number, since 1 + 6 + 0 + 10 + 9 + 618 + 7 + 6 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 160109618769 - 2²³ = 160101230161 is a prime.

It is a super-2 number, since 2×160109618769² (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 (160109618869) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1133722 + ... + 1267100.

Almost surely, 2^160109618769 is an apocalyptic number.

160109618769 is the 400137-th square number.

160109618769 is the 200069-th centered octagonal number.

It is an amenable number.

160109618769 is a deficient number, since it is larger than the sum of its proper divisors (71161564504).

160109618769 is an frugal number, since it uses more digits than its factorization.

160109618769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266764 (or 133382 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 160109618769 in words is "one hundred sixty billion, one hundred nine million, six hundred eighteen thousand, seven hundred sixty-nine".