8245668816 has 120 divisors (see below), whose sum is σ = 28770640704. Its totient is φ = 2141729280.

The previous prime is 8245668779. The next prime is 8245668817. The reversal of 8245668816 is 6188665428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245668817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360741 + ... + 382916.

Almost surely, 2^8245668816 is an apocalyptic number.

It is an amenable number.

8245668816 is an abundant number, since it is smaller than the sum of its proper divisors (20524971888).

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

8245668816 is a wasteful number, since it uses less digits than its factorization.

8245668816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743689 (or 743680 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 8245668816 is about 90805.6651096175. The cubic root of 8245668816 is about 2020.2663453000.

The spelling of 8245668816 in words is "eight billion, two hundred forty-five million, six hundred sixty-eight thousand, eight hundred sixteen".