1712117666656 has 24 divisors (see below), whose sum is σ = 3370774811040. Its totient is φ = 856047873408.

The previous prime is 1712117666647. The next prime is 1712117666741. The reversal of 1712117666656 is 6566667112171.

It is a junction number, because it is equal to n+sod(n) for n = 1712117666597 and 1712117666606.

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 in 3 ways as a sum of consecutive naturals, for example, 2579545 + ... + 3174631.

It is an arithmetic number, because the mean of its divisors is an integer number (140448950460).

Almost surely, 2^{1712117666656} is an apocalyptic number.

1712117666656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1712117666656 is a deficient number, since it is larger than the sum of its proper divisors (1658657144384).

1712117666656 is an equidigital number, since it uses as much as digits as its factorization.

1712117666656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685006 (or 684998 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The spelling of 1712117666656 in words is "one trillion, seven hundred twelve billion, one hundred seventeen million, six hundred sixty-six thousand, six hundred fifty-six".