8195220920 has 32 divisors (see below), whose sum is σ = 18449229600. Its totient is φ = 3276313728.

The previous prime is 8195220899. The next prime is 8195220949. The reversal of 8195220920 is 290225918.

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 7 ways as a sum of consecutive naturals, for example, 20642 + ... + 129678.

It is an arithmetic number, because the mean of its divisors is an integer number (576538425).

Almost surely, 2^8195220920 is an apocalyptic number.

It is an amenable number.

8195220920 is an abundant number, since it is smaller than the sum of its proper divisors (10254008680).

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

8195220920 is a wasteful number, since it uses less digits than its factorization.

8195220920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110927 (or 110923 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 8195220920 is about 90527.4594805355. The cubic root of 8195220920 is about 2016.1378447518.

The spelling of 8195220920 in words is "eight billion, one hundred ninety-five million, two hundred twenty thousand, nine hundred twenty".