6612585681 has 16 divisors (see below), whose sum is σ = 9609397056. Its totient is φ = 4020254016.

The previous prime is 6612585677. The next prime is 6612585689. The reversal of 6612585681 is 1865852166.

6612585681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6612585681 - 2² = 6612585677 is a prime.

It is a super-2 number, since 2×6612585681² = 87452578777132467522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6612585681.

It is not an unprimeable number, because it can be changed into a prime (6612585689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018170 + ... + 1024643.

It is an arithmetic number, because the mean of its divisors is an integer number (600587316).

Almost surely, 2^6612585681 is an apocalyptic number.

It is an amenable number.

6612585681 is a deficient number, since it is larger than the sum of its proper divisors (2996811375).

6612585681 is a wasteful number, since it uses less digits than its factorization.

6612585681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042912.

The product of its digits is 691200, while the sum is 48.

The square root of 6612585681 is about 81317.8066661909. The cubic root of 6612585681 is about 1876.9690183163.

The spelling of 6612585681 in words is "six billion, six hundred twelve million, five hundred eighty-five thousand, six hundred eighty-one".