6541808222 has 4 divisors (see below), whose sum is σ = 9812712336. Its totient is φ = 3270904110.

The previous prime is 6541808219. The next prime is 6541808237. The reversal of 6541808222 is 2228081456.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1635452054 + ... + 1635452057.

It is an arithmetic number, because the mean of its divisors is an integer number (2453178084).

Almost surely, 2^6541808222 is an apocalyptic number.

6541808222 is a deficient number, since it is larger than the sum of its proper divisors (3270904114).

6541808222 is a wasteful number, since it uses less digits than its factorization.

6541808222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270904113.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 6541808222 is about 80881.4454742248. The cubic root of 6541808222 is about 1870.2483033642.

Adding to 6541808222 its reverse (2228081456), we get a palindrome (8769889678).

The spelling of 6541808222 in words is "six billion, five hundred forty-one million, eight hundred eight thousand, two hundred twenty-two".