160861806 has 72 divisors (see below), whose sum is σ = 407538144. Its totient is φ = 45722880.

The previous prime is 160861787. The next prime is 160861807. The reversal of 160861806 is 608168061.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160861807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 238686 + ... + 239358.

It is an arithmetic number, because the mean of its divisors is an integer number (5660252).

Almost surely, 2^160861806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160861806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203769072).

160861806 is an abundant number, since it is smaller than the sum of its proper divisors (246676338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160861806 is a wasteful number, since it uses less digits than its factorization.

160861806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 160861806 is about 12683.1307649176. The cubic root of 160861806 is about 543.8564874280.

The spelling of 160861806 in words is "one hundred sixty million, eight hundred sixty-one thousand, eight hundred six".