166354245 has 12 divisors (see below), whose sum is σ = 288347436. Its totient is φ = 88722240.

The previous prime is 166354213. The next prime is 166354247. The reversal of 166354245 is 542453661.

166354245 is a `hidden beast` number, since 1 + 66 + 354 + 245 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52099524 + 114254721 = 7218^2 + 10689^2 .

It is not a de Polignac number, because 166354245 - 2⁵ = 166354213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166354247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1848336 + ... + 1848425.

It is an arithmetic number, because the mean of its divisors is an integer number (24028953).

Almost surely, 2^166354245 is an apocalyptic number.

166354245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166354245 is a deficient number, since it is larger than the sum of its proper divisors (121993191).

166354245 is a wasteful number, since it uses less digits than its factorization.

166354245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696772 (or 3696769 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 166354245 is about 12897.8387724456. The cubic root of 166354245 is about 549.9771285255.

The spelling of 166354245 in words is "one hundred sixty-six million, three hundred fifty-four thousand, two hundred forty-five".