6501020456 has 64 divisors (see below), whose sum is σ = 14768438400. Its totient is φ = 2619021312.

The previous prime is 6501020431. The next prime is 6501020459. The reversal of 6501020456 is 6540201056.

It is not an unprimeable number, because it can be changed into a prime (6501020459) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 859700 + ... + 867228.

It is an arithmetic number, because the mean of its divisors is an integer number (230756850).

Almost surely, 2^6501020456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6501020456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7384219200).

6501020456 is an abundant number, since it is smaller than the sum of its proper divisors (8267417944).

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

6501020456 is a wasteful number, since it uses less digits than its factorization.

6501020456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466 (or 8462 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6501020456 is about 80628.9058340742. The cubic root of 6501020456 is about 1866.3532364625.

The spelling of 6501020456 in words is "six billion, five hundred one million, twenty thousand, four hundred fifty-six".