65730161 has 16 divisors (see below), whose sum is σ = 76327680. Its totient is φ = 55442880.

The previous prime is 65730131. The next prime is 65730163. The reversal of 65730161 is 16103756.

It is a cyclic number.

It is not a de Polignac number, because 65730161 - 2¹⁴ = 65713777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65730163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211196 + ... + 211506.

It is an arithmetic number, because the mean of its divisors is an integer number (4770480).

Almost surely, 2^65730161 is an apocalyptic number.

It is an amenable number.

65730161 is a deficient number, since it is larger than the sum of its proper divisors (10597519).

65730161 is a wasteful number, since it uses less digits than its factorization.

65730161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 65730161 is about 8107.4139526732. The cubic root of 65730161 is about 403.5725001997.

The spelling of 65730161 in words is "sixty-five million, seven hundred thirty thousand, one hundred sixty-one".