8266161 has 4 divisors (see below), whose sum is σ = 11021552. Its totient is φ = 5510772.

The previous prime is 8266151. The next prime is 8266163. The reversal of 8266161 is 1616628.

8266161 is digitally balanced in base 3 and base 4, because in such bases 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 not a de Polignac number, because 8266161 - 2⁵ = 8266129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8266163) 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, 1377691 + ... + 1377696.

It is an arithmetic number, because the mean of its divisors is an integer number (2755388).

Almost surely, 2^8266161 is an apocalyptic number.

It is an amenable number.

8266161 is a deficient number, since it is larger than the sum of its proper divisors (2755391).

8266161 is a wasteful number, since it uses less digits than its factorization.

8266161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755390.

The product of its digits is 3456, while the sum is 30.

The square root of 8266161 is about 2875.0932158801. The cubic root of 8266161 is about 202.1938553353.

The spelling of 8266161 in words is "eight million, two hundred sixty-six thousand, one hundred sixty-one".