166363245 has 24 divisors (see below), whose sum is σ = 291343416. Its totient is φ = 87810048.

The previous prime is 166363243. The next prime is 166363283. The reversal of 166363245 is 542363661.

166363245 is a `hidden beast` number, since 16 + 6 + 3 + 632 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17791524 + 148571721 = 4218^2 + 12189^2 .

It is not a de Polignac number, because 166363245 - 2¹ = 166363243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166363243) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14692 + ... + 23421.

It is an arithmetic number, because the mean of its divisors is an integer number (12139309).

Almost surely, 2^166363245 is an apocalyptic number.

166363245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166363245 is a deficient number, since it is larger than the sum of its proper divisors (124980171).

166363245 is a wasteful number, since it uses less digits than its factorization.

166363245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38221 (or 38218 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 166363245 is about 12898.1876633890. The cubic root of 166363245 is about 549.9870465269.

It can be divided in two parts, 16636 and 3245, that added together give a square (19881 = 141²).

The spelling of 166363245 in words is "one hundred sixty-six million, three hundred sixty-three thousand, two hundred forty-five".