6665725346 has 64 divisors (see below), whose sum is σ = 11919070464. Its totient is φ = 2737152000.

The previous prime is 6665725309. The next prime is 6665725349. The reversal of 6665725346 is 6435275666.

It is a junction number, because it is equal to n+sod(n) for n = 6665725294 and 6665725303.

It is not an unprimeable number, because it can be changed into a prime (6665725349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5549546 + ... + 5550746.

It is an arithmetic number, because the mean of its divisors is an integer number (186235476).

Almost surely, 2^6665725346 is an apocalyptic number.

6665725346 is a deficient number, since it is larger than the sum of its proper divisors (5253345118).

6665725346 is a wasteful number, since it uses less digits than its factorization.

6665725346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its digits is 5443200, while the sum is 50.

The square root of 6665725346 is about 81643.8935009839. The cubic root of 6665725346 is about 1881.9834719263.

The spelling of 6665725346 in words is "six billion, six hundred sixty-five million, seven hundred twenty-five thousand, three hundred forty-six".