6564750000 has 140 divisors (see below), whose sum is σ = 21200822376. Its totient is φ = 1750400000.

The previous prime is 6564749969. The next prime is 6564750007. The reversal of 6564750000 is 574656.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6564750007) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 745624 + ... + 754376.

Almost surely, 2^6564750000 is an apocalyptic number.

6564750000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6564750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10600411188).

6564750000 is an abundant number, since it is smaller than the sum of its proper divisors (14636072376).

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

6564750000 is an frugal number, since it uses more digits than its factorization.

6564750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794 (or 8763 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 6564750000 is about 81023.1448414587. The cubic root of 6564750000 is about 1872.4320401383.

The spelling of 6564750000 in words is "six billion, five hundred sixty-four million, seven hundred fifty thousand".