209164091714 has 16 divisors (see below), whose sum is σ = 330290217600. Its totient is φ = 99068390064.

The previous prime is 209164091707. The next prime is 209164091737. The reversal of 209164091714 is 417190461902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157847 + ... + 665765.

It is an arithmetic number, because the mean of its divisors is an integer number (20643138600).

Almost surely, 2^209164091714 is an apocalyptic number.

209164091714 is a deficient number, since it is larger than the sum of its proper divisors (121126125886).

209164091714 is a wasteful number, since it uses less digits than its factorization.

209164091714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518777.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 209164091714 in words is "two hundred nine billion, one hundred sixty-four million, ninety-one thousand, seven hundred fourteen".