166302345 has 32 divisors (see below), whose sum is σ = 305556480. Its totient is φ = 76386240.

The previous prime is 166302341. The next prime is 166302359. The reversal of 166302345 is 543203661.

It is not a de Polignac number, because 166302345 - 2² = 166302341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166302341) 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 31 ways as a sum of consecutive naturals, for example, 23389 + ... + 29658.

It is an arithmetic number, because the mean of its divisors is an integer number (9548640).

Almost surely, 2^166302345 is an apocalyptic number.

166302345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166302345 is a deficient number, since it is larger than the sum of its proper divisors (139254135).

166302345 is a wasteful number, since it uses less digits than its factorization.

166302345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53085.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 166302345 is about 12895.8266505098. The cubic root of 166302345 is about 549.9199277371.

The spelling of 166302345 in words is "one hundred sixty-six million, three hundred two thousand, three hundred forty-five".