6600725947 has 16 divisors (see below), whose sum is σ = 6822144000. Its totient is φ = 6383186784.

The previous prime is 6600725939. The next prime is 6600725959. The reversal of 6600725947 is 7495270066.

It is a cyclic number.

It is not a de Polignac number, because 6600725947 - 2³ = 6600725939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6600725897 and 6600725906.

It is not an unprimeable number, because it can be changed into a prime (6600725927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511954 + ... + 3513832.

It is an arithmetic number, because the mean of its divisors is an integer number (426384000).

Almost surely, 2^6600725947 is an apocalyptic number.

6600725947 is a deficient number, since it is larger than the sum of its proper divisors (221418053).

6600725947 is a wasteful number, since it uses less digits than its factorization.

6600725947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 6600725947 is about 81244.8518184383. The cubic root of 6600725947 is about 1875.8462263312.

The spelling of 6600725947 in words is "six billion, six hundred million, seven hundred twenty-five thousand, nine hundred forty-seven".