6513044020 has 48 divisors (see below), whose sum is σ = 15994839168. Its totient is φ = 2181110400.

The previous prime is 6513044003. The next prime is 6513044099. The reversal of 6513044020 is 204403156.

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 15 ways as a sum of consecutive naturals, for example, 534931 + ... + 546970.

It is an arithmetic number, because the mean of its divisors is an integer number (333225816).

Almost surely, 2^6513044020 is an apocalyptic number.

It is an amenable number.

6513044020 is an abundant number, since it is smaller than the sum of its proper divisors (9481795148).

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

6513044020 is a wasteful number, since it uses less digits than its factorization.

6513044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081960 (or 1081958 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6513044020 is about 80703.4325168391. The cubic root of 6513044020 is about 1867.5031276026.

Adding to 6513044020 its reverse (204403156), we get a palindrome (6717447176).

The spelling of 6513044020 in words is "six billion, five hundred thirteen million, forty-four thousand, twenty".