168166206 has 96 divisors (see below), whose sum is σ = 417056640. Its totient is φ = 50458464.

The previous prime is 168166199. The next prime is 168166213. The reversal of 168166206 is 602661861.

168166206 is a `hidden beast` number, since 16 + 8 + 16 + 620 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (168166199) and next prime (168166213).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 271365 + ... + 271983.

It is an arithmetic number, because the mean of its divisors is an integer number (4344340).

Almost surely, 2^168166206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168166206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208528320).

168166206 is an abundant number, since it is smaller than the sum of its proper divisors (248890434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168166206 is a wasteful number, since it uses less digits than its factorization.

168166206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 168166206 is about 12967.8913474782. The cubic root of 168166206 is about 551.9667394893.

The spelling of 168166206 in words is "one hundred sixty-eight million, one hundred sixty-six thousand, two hundred six".