8218147716 has 81 divisors (see below), whose sum is σ = 21556059343. Its totient is φ = 2639844480.

The previous prime is 8218147703. The next prime is 8218147727. The reversal of 8218147716 is 6177418128.

The square root of 8218147716 is 90654.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 311381316 + 7906766400 = 17646^2 + 88920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15773536 + ... + 15774056.

Almost surely, 2^8218147716 is an apocalyptic number.

8218147716 is the 90654-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8218147716

8218147716 is an abundant number, since it is smaller than the sum of its proper divisors (13337911627).

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

8218147716 is a wasteful number, since it uses less digits than its factorization.

8218147716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 555 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The cubic root of 8218147716 is about 2018.0161973369.

The spelling of 8218147716 in words is "eight billion, two hundred eighteen million, one hundred forty-seven thousand, seven hundred sixteen".