6725395656 has 80 divisors (see below), whose sum is σ = 21528397440. Its totient is φ = 1921540320.

The previous prime is 6725395637. The next prime is 6725395669. The reversal of 6725395656 is 6565935276.

It is a happy number.

6725395656 is a `hidden beast` number, since 6 + 7 + 2 + 539 + 56 + 56 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 736800 + ... + 745871.

It is an arithmetic number, because the mean of its divisors is an integer number (269104968).

Almost surely, 2^6725395656 is an apocalyptic number.

It is an amenable number.

6725395656 is an abundant number, since it is smaller than the sum of its proper divisors (14803001784).

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

6725395656 is a wasteful number, since it uses less digits than its factorization.

6725395656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482696 (or 1482683 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 54.

The square root of 6725395656 is about 82008.5096560107. The cubic root of 6725395656 is about 1887.5825176035.

The spelling of 6725395656 in words is "six billion, seven hundred twenty-five million, three hundred ninety-five thousand, six hundred fifty-six".