6448508566 has 8 divisors (see below), whose sum is σ = 9748926720. Its totient is φ = 3198866328.

The previous prime is 6448508557. The next prime is 6448508581. The reversal of 6448508566 is 6658058446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12693661 + ... + 12694168.

It is an arithmetic number, because the mean of its divisors is an integer number (1218615840).

Almost surely, 2^6448508566 is an apocalyptic number.

6448508566 is a deficient number, since it is larger than the sum of its proper divisors (3300418154).

6448508566 is a wasteful number, since it uses less digits than its factorization.

6448508566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387958.

The product of its (nonzero) digits is 5529600, while the sum is 52.

The square root of 6448508566 is about 80302.6062217161. The cubic root of 6448508566 is about 1861.3144989791.

The spelling of 6448508566 in words is "six billion, four hundred forty-eight million, five hundred eight thousand, five hundred sixty-six".