8216626381165 has 8 divisors (see below), whose sum is σ = 9931922108280. Its totient is φ = 6525320804352.

The previous prime is 8216626381151. The next prime is 8216626381189. The reversal of 8216626381165 is 5611836266128.

It can be written as a sum of positive squares in 4 ways, for example, as 229231245961 + 7987395135204 = 478781^2 + 2826198^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8216626381165 - 2⁷ = 8216626381037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5997536820 + ... + 5997538189.

It is an arithmetic number, because the mean of its divisors is an integer number (1241490263535).

Almost surely, 2^{8216626381165} is an apocalyptic number.

It is an amenable number.

8216626381165 is a deficient number, since it is larger than the sum of its proper divisors (1715295727115).

8216626381165 is a wasteful number, since it uses less digits than its factorization.

8216626381165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11995075151.

The product of its digits is 4976640, while the sum is 55.

The spelling of 8216626381165 in words is "eight trillion, two hundred sixteen billion, six hundred twenty-six million, three hundred eighty-one thousand, one hundred sixty-five".