7665289656 has 16 divisors (see below), whose sum is σ = 19163224200. Its totient is φ = 2555096544.

The previous prime is 7665289637. The next prime is 7665289661. The reversal of 7665289656 is 6569825667.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7665289656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159693511 + ... + 159693558.

Almost surely, 2^7665289656 is an apocalyptic number.

It is an amenable number.

7665289656 is an abundant number, since it is smaller than the sum of its proper divisors (11497934544).

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

7665289656 is a wasteful number, since it uses less digits than its factorization.

7665289656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319387078 (or 319387074 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 60.

The square root of 7665289656 is about 87551.6399389526. The cubic root of 7665289656 is about 1971.7091728114.

The spelling of 7665289656 in words is "seven billion, six hundred sixty-five million, two hundred eighty-nine thousand, six hundred fifty-six".