170555770655 has 16 divisors (see below), whose sum is σ = 206605209600. Its totient is φ = 135152742432.

The previous prime is 170555770631. The next prime is 170555770657. The reversal of 170555770655 is 556077555071.

It is a cyclic number.

It is not a de Polignac number, because 170555770655 - 2³⁰ = 169482028831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 170555770597 and 170555770606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170555770657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6084482 + ... + 6112448.

It is an arithmetic number, because the mean of its divisors is an integer number (12912825600).

Almost surely, 2^170555770655 is an apocalyptic number.

170555770655 is a deficient number, since it is larger than the sum of its proper divisors (36049438945).

170555770655 is a wasteful number, since it uses less digits than its factorization.

170555770655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39478.

The product of its (nonzero) digits is 6431250, while the sum is 53.

The spelling of 170555770655 in words is "one hundred seventy billion, five hundred fifty-five million, seven hundred seventy thousand, six hundred fifty-five".