6499220832 has 216 divisors, whose sum is σ = 20322122184. Its totient is φ = 1968924672.

The previous prime is 6499220803. The next prime is 6499220851. The reversal of 6499220832 is 2380229946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3260028 + ... + 3262020.

It is an arithmetic number, because the mean of its divisors is an integer number (94083899).

Almost surely, 2^6499220832 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 6499220832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10161061092).

6499220832 is an abundant number, since it is smaller than the sum of its proper divisors (13822901352).

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

6499220832 is a wasteful number, since it uses less digits than its factorization.

6499220832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102 (or 2078 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 6499220832 is about 80617.7451433616. The cubic root of 6499220832 is about 1866.1810048326.

The spelling of 6499220832 in words is "six billion, four hundred ninety-nine million, two hundred twenty thousand, eight hundred thirty-two".