8205190650 has 120 divisors (see below), whose sum is σ = 22833102204. Its totient is φ = 2184710400.

The previous prime is 8205190627. The next prime is 8205190663. The reversal of 8205190650 is 560915028.

It is a happy number.

8205190650 is a `hidden beast` number, since 82 + 0 + 519 + 0 + 65 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1546141041 + 6659049609 = 39321^2 + 81603^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3809974 + ... + 3812126.

Almost surely, 2^8205190650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8205190650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11416551102).

8205190650 is an abundant number, since it is smaller than the sum of its proper divisors (14627911554).

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

8205190650 is a wasteful number, since it uses less digits than its factorization.

8205190650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 8205190650 is about 90582.5074172712. The cubic root of 8205190650 is about 2016.9550773301.

The spelling of 8205190650 in words is "eight billion, two hundred five million, one hundred ninety thousand, six hundred fifty".