8166520 has 16 divisors (see below), whose sum is σ = 18374760. Its totient is φ = 3266592.

The previous prime is 8166469. The next prime is 8166553. The reversal of 8166520 is 256618.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102042 + ... + 102121.

Almost surely, 2^8166520 is an apocalyptic number.

It is an amenable number.

8166520 is an abundant number, since it is smaller than the sum of its proper divisors (10208240).

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

8166520 is a wasteful number, since it uses less digits than its factorization.

8166520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204174 (or 204170 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8166520 is about 2857.7123718107. The cubic root of 8166520 is about 201.3781483892.

The spelling of 8166520 in words is "eight million, one hundred sixty-six thousand, five hundred twenty".