6498448660 has 24 divisors (see below), whose sum is σ = 14887355616. Its totient is φ = 2363072160.

The previous prime is 6498448603. The next prime is 6498448661. The reversal of 6498448660 is 668448946.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6498448661) 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, 14768982 + ... + 14769421.

It is an arithmetic number, because the mean of its divisors is an integer number (620306484).

Almost surely, 2^6498448660 is an apocalyptic number.

It is an amenable number.

6498448660 is an abundant number, since it is smaller than the sum of its proper divisors (8388906956).

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

6498448660 is a wasteful number, since it uses less digits than its factorization.

6498448660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29538423 (or 29538421 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 55.

The square root of 6498448660 is about 80612.9559066035. The cubic root of 6498448660 is about 1866.1070949579.

The spelling of 6498448660 in words is "six billion, four hundred ninety-eight million, four hundred forty-eight thousand, six hundred sixty".