1117566656685 has 32 divisors (see below), whose sum is σ = 2055295008000. Its totient is φ = 575482598208.

The previous prime is 1117566656617. The next prime is 1117566656693. The reversal of 1117566656685 is 5866566657111.

It is not a de Polignac number, because 1117566656685 - 2⁸ = 1117566656429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142724905 + ... + 142732734.

It is an arithmetic number, because the mean of its divisors is an integer number (64227969000).

Almost surely, 2^{1117566656685} is an apocalyptic number.

1117566656685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1117566656685 is a deficient number, since it is larger than the sum of its proper divisors (937728351315).

1117566656685 is a wasteful number, since it uses less digits than its factorization.

1117566656685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285457682 (or 285457676 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 1117566656685 in words is "one trillion, one hundred seventeen billion, five hundred sixty-six million, six hundred fifty-six thousand, six hundred eighty-five".