160695989 has 8 divisors (see below), whose sum is σ = 166379160. Its totient is φ = 155022336.

The previous prime is 160695979. The next prime is 160696001. The reversal of 160695989 is 989596061.

It can be written as a sum of positive squares in 4 ways, for example, as 4695889 + 156000100 = 2167^2 + 12490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160695989 - 2¹² = 160691893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 160695989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160695919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60677 + ... + 63269.

It is an arithmetic number, because the mean of its divisors is an integer number (20797395).

Almost surely, 2^160695989 is an apocalyptic number.

It is an amenable number.

160695989 is a deficient number, since it is larger than the sum of its proper divisors (5683171).

160695989 is a wasteful number, since it uses less digits than its factorization.

160695989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 160695989 is about 12676.5921682446. The cubic root of 160695989 is about 543.6695533605.

The spelling of 160695989 in words is "one hundred sixty million, six hundred ninety-five thousand, nine hundred eighty-nine".