170020168685 has 8 divisors (see below), whose sum is σ = 204034697496. Its totient is φ = 136009138240.

The previous prime is 170020168679. The next prime is 170020168699. The reversal of 170020168685 is 586861020071.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2468301124 + 167551867561 = 49682^2 + 409331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-170020168685 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766454 + ... + 963063.

It is an arithmetic number, because the mean of its divisors is an integer number (25504337187).

Almost surely, 2^170020168685 is an apocalyptic number.

It is an amenable number.

170020168685 is a deficient number, since it is larger than the sum of its proper divisors (34014528811).

170020168685 is a wasteful number, since it uses less digits than its factorization.

170020168685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749183.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 170020168685 in words is "one hundred seventy billion, twenty million, one hundred sixty-eight thousand, six hundred eighty-five".