6455651020 has 192 divisors, whose sum is σ = 17160192000. Its totient is φ = 2027047680.

The previous prime is 6455651003. The next prime is 6455651021. The reversal of 6455651020 is 201565546.

It is not an unprimeable number, because it can be changed into a prime (6455651021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17033191 + ... + 17033569.

It is an arithmetic number, because the mean of its divisors is an integer number (89376000).

Almost surely, 2^6455651020 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 6455651020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8580096000).

6455651020 is an abundant number, since it is smaller than the sum of its proper divisors (10704540980).

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

6455651020 is a wasteful number, since it uses less digits than its factorization.

6455651020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 6455651020 is about 80347.0660323076. The cubic root of 6455651020 is about 1862.0014509948.

The spelling of 6455651020 in words is "six billion, four hundred fifty-five million, six hundred fifty-one thousand, twenty".