166948245 has 24 divisors (see below), whose sum is σ = 306400536. Its totient is φ = 83801088.

The previous prime is 166948217. The next prime is 166948261. The reversal of 166948245 is 542849661.

166948245 is a `hidden beast` number, since 166 + 9 + 482 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 91987281 + 74960964 = 9591^2 + 8658^2 .

It is a de Polignac number, because none of the positive numbers 2^k-166948245 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 166948245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108352 + ... + 109881.

It is an arithmetic number, because the mean of its divisors is an integer number (12766689).

Almost surely, 2^166948245 is an apocalyptic number.

166948245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166948245 is a deficient number, since it is larger than the sum of its proper divisors (139452291).

166948245 is a wasteful number, since it uses less digits than its factorization.

166948245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218261 (or 218258 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 166948245 is about 12920.8453670803. The cubic root of 166948245 is about 550.6309508381.

The spelling of 166948245 in words is "one hundred sixty-six million, nine hundred forty-eight thousand, two hundred forty-five".