8645152216665 has 16 divisors (see below), whose sum is σ = 13865099242176. Its totient is φ = 4599795950400.

The previous prime is 8645152216579. The next prime is 8645152216703. The reversal of 8645152216665 is 5666122515468.

It is not a de Polignac number, because 8645152216665 - 2⁸ = 8645152216409 is a prime.

It is a Curzon 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, 684487131 + ... + 684499760.

It is an arithmetic number, because the mean of its divisors is an integer number (866568702636).

Almost surely, 2^{8645152216665} is an apocalyptic number.

It is an amenable number.

8645152216665 is a deficient number, since it is larger than the sum of its proper divisors (5219947025511).

8645152216665 is a wasteful number, since it uses less digits than its factorization.

8645152216665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368987320.

The product of its digits is 20736000, while the sum is 57.

The spelling of 8645152216665 in words is "eight trillion, six hundred forty-five billion, one hundred fifty-two million, two hundred sixteen thousand, six hundred sixty-five".