866182083578712 has 96 divisors (see below), whose sum is σ = 2484767280902400. Its totient is φ = 271649009544192.

The previous prime is 866182083578701. The next prime is 866182083578741. The reversal of 866182083578712 is 217875380281668.

866182083578712 is a `hidden beast` number, since 8 + 6 + 6 + 18 + 20 + 8 + 3 + 578 + 7 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119377303 + ... + 126425094.

It is an arithmetic number, because the mean of its divisors is an integer number (25882992509400).

Almost surely, 2^{866182083578712} is an apocalyptic number.

It is an amenable number.

866182083578712 is an abundant number, since it is smaller than the sum of its proper divisors (1618585197323688).

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

866182083578712 is a wasteful number, since it uses less digits than its factorization.

866182083578712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245805305 (or 245805298 counting only the distinct ones).

The product of its (nonzero) digits is 433520640, while the sum is 72.

The spelling of 866182083578712 in words is "eight hundred sixty-six trillion, one hundred eighty-two billion, eighty-three million, five hundred seventy-eight thousand, seven hundred twelve".