6766452720 has 160 divisors (see below), whose sum is σ = 23369486400. Its totient is φ = 1799525376.

The previous prime is 6766452683. The next prime is 6766452733. The reversal of 6766452720 is 272546676.

6766452720 is a `hidden beast` number, since 67 + 6 + 64 + 527 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836214 + ... + 844266.

It is an arithmetic number, because the mean of its divisors is an integer number (146059290).

Almost surely, 2^6766452720 is an apocalyptic number.

6766452720 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 6766452720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11684743200).

6766452720 is an abundant number, since it is smaller than the sum of its proper divisors (16603033680).

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

6766452720 is a wasteful number, since it uses less digits than its factorization.

6766452720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 6766452720 is about 82258.4507512754. The cubic root of 6766452720 is about 1891.4158199551.

The spelling of 6766452720 in words is "six billion, seven hundred sixty-six million, four hundred fifty-two thousand, seven hundred twenty".