168417103775655 has 32 divisors (see below), whose sum is σ = 310952633232384. Its totient is φ = 76243193715456.

The previous prime is 168417103775653. The next prime is 168417103775659. The reversal of 168417103775655 is 556577301714861.

It is a happy number.

It is not a de Polignac number, because 168417103775655 - 2¹ = 168417103775653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168417103775653) 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 31 ways as a sum of consecutive naturals, for example, 7786263054 + ... + 7786284683.

It is an arithmetic number, because the mean of its divisors is an integer number (9717269788512).

Almost surely, 2^{168417103775655} is an apocalyptic number.

168417103775655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168417103775655 is a deficient number, since it is larger than the sum of its proper divisors (142535529456729).

168417103775655 is a wasteful number, since it uses less digits than its factorization.

168417103775655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15572547855.

The product of its (nonzero) digits is 148176000, while the sum is 66.

The spelling of 168417103775655 in words is "one hundred sixty-eight trillion, four hundred seventeen billion, one hundred three million, seven hundred seventy-five thousand, six hundred fifty-five".