6567998080 has 128 divisors (see below), whose sum is σ = 18327098880. Its totient is φ = 2203901952.

The previous prime is 6567998051. The next prime is 6567998123. The reversal of 6567998080 is 808997656.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194964 + ... + 226156.

It is an arithmetic number, because the mean of its divisors is an integer number (143180460).

Almost surely, 2^6567998080 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 6567998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9163549440).

6567998080 is an abundant number, since it is smaller than the sum of its proper divisors (11759100800).

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

6567998080 is a wasteful number, since it uses less digits than its factorization.

6567998080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31266 (or 31254 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The square root of 6567998080 is about 81043.1865118839. The cubic root of 6567998080 is about 1872.7408006289.

The spelling of 6567998080 in words is "six billion, five hundred sixty-seven million, nine hundred ninety-eight thousand, eighty".