9656557684 has 6 divisors (see below), whose sum is σ = 16898975954. Its totient is φ = 4828278840.

The previous prime is 9656557657. The next prime is 9656557693. The reversal of 9656557684 is 4867556569.

9656557684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9465344100 + 191213584 = 97290^2 + 13828^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1207069707 + ... + 1207069714.

Almost surely, 2^9656557684 is an apocalyptic number.

It is an amenable number.

9656557684 is a deficient number, since it is larger than the sum of its proper divisors (7242418270).

9656557684 is a wasteful number, since it uses less digits than its factorization.

9656557684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414139425 (or 2414139423 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 61.

The square root of 9656557684 is about 98267.7855861218. The cubic root of 9656557684 is about 2129.4826845112.

The spelling of 9656557684 in words is "nine billion, six hundred fifty-six million, five hundred fifty-seven thousand, six hundred eighty-four".