8266666832 has 80 divisors (see below), whose sum is σ = 17441740800. Its totient is φ = 3781157760.

The previous prime is 8266666819. The next prime is 8266666879. The reversal of 8266666832 is 2386666628.

It is a super-2 number, since 2×8266666832² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6963743 + ... + 6964929.

It is an arithmetic number, because the mean of its divisors is an integer number (218021760).

Almost surely, 2^8266666832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8266666832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8720870400).

8266666832 is an abundant number, since it is smaller than the sum of its proper divisors (9175073968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8266666832 is a wasteful number, since it uses less digits than its factorization.

8266666832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1978 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 53.

The square root of 8266666832 is about 90921.2122224511. The cubic root of 8266666832 is about 2021.9797954061.

The spelling of 8266666832 in words is "eight billion, two hundred sixty-six million, six hundred sixty-six thousand, eight hundred thirty-two".