213803666674 has 16 divisors (see below), whose sum is σ = 346719036888. Its totient is φ = 98294648832.

The previous prime is 213803666647. The next prime is 213803666677. The reversal of 213803666674 is 476666308312.

213803666674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 211466621025 + 2337045649 = 459855^2 + 48343^2 .

It is not an unprimeable number, because it can be changed into a prime (213803666677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15991797 + ... + 16005160.

Almost surely, 2^213803666674 is an apocalyptic number.

213803666674 is a deficient number, since it is larger than the sum of its proper divisors (132915370214).

213803666674 is a wasteful number, since it uses less digits than its factorization.

213803666674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31997229.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 213803666674 in words is "two hundred thirteen billion, eight hundred three million, six hundred sixty-six thousand, six hundred seventy-four".