8266365261 has 24 divisors (see below), whose sum is σ = 14886615744. Its totient is φ = 4294215360.

The previous prime is 8266365259. The next prime is 8266365269. The reversal of 8266365261 is 1625636628.

8266365261 is a `hidden beast` number, since 8 + 2 + 6 + 636 + 5 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 8266365261 - 2¹ = 8266365259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266365269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5963496 + ... + 5964881.

It is an arithmetic number, because the mean of its divisors is an integer number (620275656).

Almost surely, 2^8266365261 is an apocalyptic number.

It is an amenable number.

8266365261 is a deficient number, since it is larger than the sum of its proper divisors (6620250483).

8266365261 is a wasteful number, since it uses less digits than its factorization.

8266365261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928401 (or 11928398 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 8266365261 is about 90919.5537879504. The cubic root of 8266365261 is about 2021.9552075887.

The spelling of 8266365261 in words is "eight billion, two hundred sixty-six million, three hundred sixty-five thousand, two hundred sixty-one".