8085216658 has 8 divisors (see below), whose sum is σ = 12129824700. Its totient is φ = 4041941760.

The previous prime is 8085216649. The next prime is 8085216683. The reversal of 8085216658 is 8566125808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8085066889 + 149769 = 89917^2 + 387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317983 + ... + 342466.

Almost surely, 2^8085216658 is an apocalyptic number.

8085216658 is a deficient number, since it is larger than the sum of its proper divisors (4044608042).

8085216658 is a wasteful number, since it uses less digits than its factorization.

8085216658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666572.

The product of its (nonzero) digits is 921600, while the sum is 49.

The square root of 8085216658 is about 89917.8328141865. The cubic root of 8085216658 is about 2007.0763214754.

The spelling of 8085216658 in words is "eight billion, eighty-five million, two hundred sixteen thousand, six hundred fifty-eight".