260066161 has 4 divisors (see below), whose sum is σ = 268455424. Its totient is φ = 251676900.

The previous prime is 260066143. The next prime is 260066197. The reversal of 260066161 is 161660062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161660062 = 2 ⋅80830031.

It is a cyclic number.

It is not a de Polignac number, because 260066161 - 2¹³ = 260057969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260066101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4194585 + ... + 4194646.

It is an arithmetic number, because the mean of its divisors is an integer number (67113856).

Almost surely, 2^260066161 is an apocalyptic number.

It is an amenable number.

260066161 is a deficient number, since it is larger than the sum of its proper divisors (8389263).

260066161 is an equidigital number, since it uses as much as digits as its factorization.

260066161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8389262.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 260066161 is about 16126.5669316194. The cubic root of 260066161 is about 638.3045628416.

The spelling of 260066161 in words is "two hundred sixty million, sixty-six thousand, one hundred sixty-one".