8166910390250 has 32 divisors (see below), whose sum is σ = 15289977830400. Its totient is φ = 3266439032400.

The previous prime is 8166910390159. The next prime is 8166910390253. The reversal of 8166910390250 is 520930196618.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (8166910390253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899171 + ... + 4140329.

It is an arithmetic number, because the mean of its divisors is an integer number (477811807200).

Almost surely, 2^{8166910390250} is an apocalyptic number.

8166910390250 is a deficient number, since it is larger than the sum of its proper divisors (7123067440150).

8166910390250 is a wasteful number, since it uses less digits than its factorization.

8166910390250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251255 (or 3251245 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 8166910390250 in words is "eight trillion, one hundred sixty-six billion, nine hundred ten million, three hundred ninety thousand, two hundred fifty".