260206161 has 4 divisors (see below), whose sum is σ = 346941552. Its totient is φ = 173470772.

The previous prime is 260206099. The next prime is 260206169. The reversal of 260206161 is 161602062.

260206161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 260206161 - 2²¹ = 258109009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260206169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43367691 + ... + 43367696.

It is an arithmetic number, because the mean of its divisors is an integer number (86735388).

Almost surely, 2^260206161 is an apocalyptic number.

It is an amenable number.

260206161 is a deficient number, since it is larger than the sum of its proper divisors (86735391).

260206161 is an equidigital number, since it uses as much as digits as its factorization.

260206161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86735390.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 260206161 is about 16130.9070110766. The cubic root of 260206161 is about 638.4190806344.

The spelling of 260206161 in words is "two hundred sixty million, two hundred six thousand, one hundred sixty-one".