213167603218 has 4 divisors (see below), whose sum is σ = 319751404830. Its totient is φ = 106583801608.

The previous prime is 213167603213. The next prime is 213167603251. The reversal of 213167603218 is 812306761312.

213167603218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 202605313689 + 10562289529 = 450117^2 + 102773^2 .

It is not an unprimeable number, because it can be changed into a prime (213167603213) 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 as a sum of consecutive naturals, namely, 53291900803 + ... + 53291900806.

Almost surely, 2^213167603218 is an apocalyptic number.

213167603218 is a deficient number, since it is larger than the sum of its proper divisors (106583801612).

213167603218 is a wasteful number, since it uses less digits than its factorization.

213167603218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106583801611.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 213167603218 in words is "two hundred thirteen billion, one hundred sixty-seven million, six hundred three thousand, two hundred eighteen".