8168650161 has 32 divisors (see below), whose sum is σ = 13237862400. Its totient is φ = 4373826816.

The previous prime is 8168650159. The next prime is 8168650201. The reversal of 8168650161 is 1610568618.

It is not a de Polignac number, because 8168650161 - 2¹ = 8168650159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8168650121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30640 + ... + 131438.

It is an arithmetic number, because the mean of its divisors is an integer number (413683200).

Almost surely, 2^8168650161 is an apocalyptic number.

It is an amenable number.

8168650161 is a deficient number, since it is larger than the sum of its proper divisors (5069212239).

8168650161 is a wasteful number, since it uses less digits than its factorization.

8168650161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101053.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 8168650161 is about 90380.5850888342. The cubic root of 8168650161 is about 2013.9565607447.

The spelling of 8168650161 in words is "eight billion, one hundred sixty-eight million, six hundred fifty thousand, one hundred sixty-one".