166151205 has 48 divisors (see below), whose sum is σ = 317214144. Its totient is φ = 79779840.

The previous prime is 166151173. The next prime is 166151213. The reversal of 166151205 is 502151661.

It is a happy number.

It is not a de Polignac number, because 166151205 - 2⁵ = 166151173 is a prime.

It is a super-3 number, since 3×166151205³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51397 + ... + 54533.

It is an arithmetic number, because the mean of its divisors is an integer number (6608628).

Almost surely, 2^166151205 is an apocalyptic number.

166151205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166151205 is a deficient number, since it is larger than the sum of its proper divisors (151062939).

166151205 is a wasteful number, since it uses less digits than its factorization.

166151205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 166151205 is about 12889.9652831185. The cubic root of 166151205 is about 549.7532832848.

The spelling of 166151205 in words is "one hundred sixty-six million, one hundred fifty-one thousand, two hundred five".