6725725166 has 4 divisors (see below), whose sum is σ = 10088587752. Its totient is φ = 3362862582.

The previous prime is 6725725117. The next prime is 6725725177. The reversal of 6725725166 is 6615275276.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6725725166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1681431290 + ... + 1681431293.

It is an arithmetic number, because the mean of its divisors is an integer number (2522146938).

Almost surely, 2^6725725166 is an apocalyptic number.

6725725166 is a deficient number, since it is larger than the sum of its proper divisors (3362862586).

6725725166 is a wasteful number, since it uses less digits than its factorization.

6725725166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362862585.

The product of its digits is 1058400, while the sum is 47.

The square root of 6725725166 is about 82010.5186302343. The cubic root of 6725725166 is about 1887.6133443974.

The spelling of 6725725166 in words is "six billion, seven hundred twenty-five million, seven hundred twenty-five thousand, one hundred sixty-six".