9655425777644 has 6 divisors (see below), whose sum is σ = 16896995110884. Its totient is φ = 4827712888820.

The previous prime is 9655425777593. The next prime is 9655425777667. The reversal of 9655425777644 is 4467775245569.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1206928222202 + ... + 1206928222209.

It is an arithmetic number, because the mean of its divisors is an integer number (2816165851814).

Almost surely, 2^{9655425777644} is an apocalyptic number.

It is an amenable number.

9655425777644 is a deficient number, since it is larger than the sum of its proper divisors (7241569333240).

9655425777644 is a wasteful number, since it uses less digits than its factorization.

9655425777644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413856444415 (or 2413856444413 counting only the distinct ones).

The product of its digits is 1778112000, while the sum is 71.

The spelling of 9655425777644 in words is "nine trillion, six hundred fifty-five billion, four hundred twenty-five million, seven hundred seventy-seven thousand, six hundred forty-four".