6533982720 has 160 divisors (see below), whose sum is σ = 23209496640. Its totient is φ = 1742376960.

The previous prime is 6533982701. The next prime is 6533982727. The reversal of 6533982720 is 272893356.

6533982720 is a `hidden beast` number, since 6 + 533 + 98 + 2 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6533982727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21855 + ... + 116385.

It is an arithmetic number, because the mean of its divisors is an integer number (145059354).

Almost surely, 2^6533982720 is an apocalyptic number.

6533982720 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 6533982720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11604748320).

6533982720 is an abundant number, since it is smaller than the sum of its proper divisors (16675513920).

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

6533982720 is an equidigital number, since it uses as much as digits as its factorization.

6533982720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94563 (or 94541 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6533982720 is about 80833.0546249491. The cubic root of 6533982720 is about 1869.5022572620.

The spelling of 6533982720 in words is "six billion, five hundred thirty-three million, nine hundred eighty-two thousand, seven hundred twenty".