6562803920 has 20 divisors (see below), whose sum is σ = 15258519300. Its totient is φ = 2625121536.

The previous prime is 6562803869. The next prime is 6562803931. The reversal of 6562803920 is 293082656.

It can be written as a sum of positive squares in 2 ways, for example, as 1739223616 + 4823580304 = 41704^2 + 69452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41017445 + ... + 41017604.

It is an arithmetic number, because the mean of its divisors is an integer number (762925965).

Almost surely, 2^6562803920 is an apocalyptic number.

It is an amenable number.

6562803920 is an abundant number, since it is smaller than the sum of its proper divisors (8695715380).

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

6562803920 is a wasteful number, since it uses less digits than its factorization.

6562803920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82035062 (or 82035056 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6562803920 is about 81011.1345433453. The cubic root of 6562803920 is about 1872.2469981756.

The spelling of 6562803920 in words is "six billion, five hundred sixty-two million, eight hundred three thousand, nine hundred twenty".