8168564450245 has 32 divisors (see below), whose sum is σ = 9911858070240. Its totient is φ = 6461967974400.

The previous prime is 8168564450239. The next prime is 8168564450303. The reversal of 8168564450245 is 5420544658618.

It can be written as a sum of positive squares in 16 ways, for example, as 41224429444 + 8127340020801 = 203038^2 + 2850849^2 .

It is not a de Polignac number, because 8168564450245 - 2¹⁵ = 8168564417477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8168564450245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2106927247 + ... + 2106931123.

It is an arithmetic number, because the mean of its divisors is an integer number (309745564695).

Almost surely, 2^{8168564450245} is an apocalyptic number.

It is an amenable number.

8168564450245 is a deficient number, since it is larger than the sum of its proper divisors (1743293619995).

8168564450245 is a wasteful number, since it uses less digits than its factorization.

8168564450245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185.

The product of its (nonzero) digits is 36864000, while the sum is 58.

The spelling of 8168564450245 in words is "eight trillion, one hundred sixty-eight billion, five hundred sixty-four million, four hundred fifty thousand, two hundred forty-five".