209946224193066 has 96 divisors (see below), whose sum is σ = 466176567886848. Its totient is φ = 68255150895360.

The previous prime is 209946224192963. The next prime is 209946224193067. The reversal of 209946224193066 is 660391422649902.

209946224193066 is a `hidden beast` number, since 2 + 0 + 9 + 9 + 462 + 24 + 1 + 93 + 0 + 66 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 209946224192994 and 209946224193012.

It is not an unprimeable number, because it can be changed into a prime (209946224193067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 961372360 + ... + 961590716.

It is an arithmetic number, because the mean of its divisors is an integer number (4856005915488).

Almost surely, 2^{209946224193066} is an apocalyptic number.

209946224193066 is an abundant number, since it is smaller than the sum of its proper divisors (256230343693782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209946224193066 is a wasteful number, since it uses less digits than its factorization.

209946224193066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222356 (or 222353 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 63.

The spelling of 209946224193066 in words is "two hundred nine trillion, nine hundred forty-six billion, two hundred twenty-four million, one hundred ninety-three thousand, sixty-six".