8172245775216 has 80 divisors (see below), whose sum is σ = 21347965964160. Its totient is φ = 2693734567680.

The previous prime is 8172245775181. The next prime is 8172245775227. The reversal of 8172245775216 is 6125775422718.

It is a congruent 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, 516711 + ... + 4075718.

It is an arithmetic number, because the mean of its divisors is an integer number (266849574552).

Almost surely, 2^{8172245775216} is an apocalyptic number.

It is an amenable number.

8172245775216 is an abundant number, since it is smaller than the sum of its proper divisors (13175720188944).

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

8172245775216 is a wasteful number, since it uses less digits than its factorization.

8172245775216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592854 (or 4592848 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 57.

The spelling of 8172245775216 in words is "eight trillion, one hundred seventy-two billion, two hundred forty-five million, seven hundred seventy-five thousand, two hundred sixteen".