168061617 has 6 divisors (see below), whose sum is σ = 242755682. Its totient is φ = 112041072.

The previous prime is 168061573. The next prime is 168061627. The reversal of 168061617 is 716160861.

It can be written as a sum of positive squares in only one way, i.e., 130165281 + 37896336 = 11409^2 + 6156^2 .

It is not a de Polignac number, because 168061617 - 2¹⁰ = 168060593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168061627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9336748 + ... + 9336765.

Almost surely, 2^168061617 is an apocalyptic number.

It is an amenable number.

168061617 is a deficient number, since it is larger than the sum of its proper divisors (74694065).

168061617 is a wasteful number, since it uses less digits than its factorization.

168061617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18673519 (or 18673516 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 168061617 is about 12963.8581062892. The cubic root of 168061617 is about 551.8522860112.

The spelling of 168061617 in words is "one hundred sixty-eight million, sixty-one thousand, six hundred seventeen".