8266650816870 has 24 divisors (see below), whose sum is σ = 21493292124096. Its totient is φ = 2204440217808.

The previous prime is 8266650816869. The next prime is 8266650816883. The reversal of 8266650816870 is 786180566628.

It is a junction number, because it is equal to n+sod(n) for n = 8266650816798 and 8266650816807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45925837782 + ... + 45925837961.

It is an arithmetic number, because the mean of its divisors is an integer number (895553838504).

Almost surely, 2^{8266650816870} is an apocalyptic number.

8266650816870 is an abundant number, since it is smaller than the sum of its proper divisors (13226641307226).

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

8266650816870 is a wasteful number, since it uses less digits than its factorization.

8266650816870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91851675756 (or 91851675753 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 8266650816870 in words is "eight trillion, two hundred sixty-six billion, six hundred fifty million, eight hundred sixteen thousand, eight hundred seventy".