8205665028 has 48 divisors (see below), whose sum is σ = 20919064320. Its totient is φ = 2482765600.

The previous prime is 8205665023. The next prime is 8205665051.

8205665028 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8205665021) 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, 39823 + ... + 134153.

It is an arithmetic number, because the mean of its divisors is an integer number (435813840).

Almost surely, 2^8205665028 is an apocalyptic number.

It is an amenable number.

8205665028 is an abundant number, since it is smaller than the sum of its proper divisors (12713399292).

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

8205665028 is a wasteful number, since it uses less digits than its factorization.

8205665028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95008 (or 95006 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 8205665028 is about 90585.1258651220. The cubic root of 8205665028 is about 2016.9939462493.

The spelling of 8205665028 in words is "eight billion, two hundred five million, six hundred sixty-five thousand, twenty-eight".