6516454576 has 40 divisors (see below), whose sum is σ = 13212797184. Its totient is φ = 3107522880.

The previous prime is 6516454561. The next prime is 6516454589. The reversal of 6516454576 is 6754546156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102181 + ... + 153211.

Almost surely, 2^6516454576 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 6516454576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6606398592).

6516454576 is an abundant number, since it is smaller than the sum of its proper divisors (6696342608).

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

6516454576 is a wasteful number, since it uses less digits than its factorization.

6516454576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51409 (or 51403 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The square root of 6516454576 is about 80724.5599306679. The cubic root of 6516454576 is about 1867.8290434392.

The spelling of 6516454576 in words is "six billion, five hundred sixteen million, four hundred fifty-four thousand, five hundred seventy-six".