196566345 has 24 divisors (see below), whose sum is σ = 353336256. Its totient is φ = 104834736.

The previous prime is 196566323. The next prime is 196566353. The reversal of 196566345 is 543665691.

196566345 is a `hidden beast` number, since 1 + 9 + 6 + 5 + 6 + 634 + 5 = 666.

It is not a de Polignac number, because 196566345 - 2⁶ = 196566281 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 196566345.

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, 79677 + ... + 82106.

It is an arithmetic number, because the mean of its divisors is an integer number (14722344).

Almost surely, 2^196566345 is an apocalyptic number.

196566345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196566345 is a deficient number, since it is larger than the sum of its proper divisors (156769911).

196566345 is an equidigital number, since it uses as much as digits as its factorization.

196566345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161803 (or 161791 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 196566345 is about 14020.2120169418. The cubic root of 196566345 is about 581.4375211817.

The spelling of 196566345 in words is "one hundred ninety-six million, five hundred sixty-six thousand, three hundred forty-five".