6720450506 has 96 divisors (see below), whose sum is σ = 13784408064. Its totient is φ = 2384352000.

The previous prime is 6720450493. The next prime is 6720450511. The reversal of 6720450506 is 6050540276.

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 47 ways as a sum of consecutive naturals, for example, 1377251 + ... + 1382121.

It is an arithmetic number, because the mean of its divisors is an integer number (143587584).

Almost surely, 2^6720450506 is an apocalyptic number.

6720450506 is an abundant number, since it is smaller than the sum of its proper divisors (7063957558).

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

6720450506 is a wasteful number, since it uses less digits than its factorization.

6720450506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 6720450506 is about 81978.3538868645. The cubic root of 6720450506 is about 1887.1197608161.

The spelling of 6720450506 in words is "six billion, seven hundred twenty million, four hundred fifty thousand, five hundred six".