6505672020 has 24 divisors (see below), whose sum is σ = 18215881824. Its totient is φ = 1734845856.

The previous prime is 6505672003. The next prime is 6505672027. The reversal of 6505672020 is 202765056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505672027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54213874 + ... + 54213993.

It is an arithmetic number, because the mean of its divisors is an integer number (758995076).

Almost surely, 2^6505672020 is an apocalyptic number.

6505672020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6505672020 is an abundant number, since it is smaller than the sum of its proper divisors (11710209804).

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

6505672020 is a wasteful number, since it uses less digits than its factorization.

6505672020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108427879 (or 108427877 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 6505672020 is about 80657.7461872076. The cubic root of 6505672020 is about 1866.7982636107.

The spelling of 6505672020 in words is "six billion, five hundred five million, six hundred seventy-two thousand, twenty".