8066388834 has 128 divisors (see below), whose sum is σ = 21874913280. Its totient is φ = 2153112192.

The previous prime is 8066388829. The next prime is 8066388853. The reversal of 8066388834 is 4388836608.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 363054 + ... + 384630.

It is an arithmetic number, because the mean of its divisors is an integer number (170897760).

Almost surely, 2^8066388834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8066388834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10937456640).

8066388834 is an abundant number, since it is smaller than the sum of its proper divisors (13808524446).

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

8066388834 is a wasteful number, since it uses less digits than its factorization.

8066388834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21661 (or 21655 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The square root of 8066388834 is about 89813.0771881244. The cubic root of 8066388834 is about 2005.5171692602.

It can be divided in two parts, 8066 and 388834, that added together give a square (396900 = 630²).

The spelling of 8066388834 in words is "eight billion, sixty-six million, three hundred eighty-eight thousand, eight hundred thirty-four".